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About Michael Grennell - RotoBaller

I've been writing about baseball for six years now, and I've been playing fantasy baseball for almost 10. I spent the 2016 season as the beat writer covering the Ogden Raptors for the local newspaper, and now I'm the social media intern/team photographer for the Bristol Pirates.

Michael Grennell - RotoBaller has written 369 articles so far, you can find them below.

Wei-Yin Chen Earns Quality Start, No-Decision on Saturday

After tying his season-high with 5 1/3 innings pitched in his last start, Marlins starter Wei-Yin Chen had his longest start in 13 months on Saturday, throwing 7 1/3 innings of one-run ball against the Nationals. Earning his first quality start since May 1, 2017, Chen allowed one run on three hits and two walks... Read More

2 years ago

JT Riddle Recalled from Triple-A, Goes 0-for-4 in Return

With Miami Marlins third baseman Martin Prado landing on the disabled list with a hamstring strain, shortstop JT Riddle was recalled from Triple-A New Orleans on Saturday and went 0-for-4 in his first game back with Miami. Over 21 games at Triple-A, Riddle was hitting .346 with three home runs, 19 RBI, two steals and... Read More

2 years ago

Martin Prado Has Three-Hit Night, Leaves Game with Hamstring Injury

On the same night Miami Marlins third baseman Martin Prado had his first three-hit performance in over a year, Prado suffered what's Joe Frisaro reports is a "significant" hamstring injury. Clark Spencer of the Miami Herald adds that an ultrasound of Prado revealed "significant gaps" in hamstring fibers and muscle. Prado finished the game... Read More

2 years ago

Brad Ziegler Picks Up Ninth Save on Wednesday

After not getting the save in his last two appearances, Miami Marlins closer Brad Ziegler picked up his ninth save of the year on Wednesday in the Marlins' 2-1 win over the Mets. Ziegler is now tied for 15th in the majors in saves, but among closers with at least nine saves his 6.55 ERA... Read More

2 years ago

Dan Straily Records Second Straight Quality Start Wednesday

Miami Marlins starter Dan Straily recorded his second straight quality start on Wednesday night against the Mets, throwing six innings of one-run ball. The only run Straily allowed came on a fifth-inning home run, as he allowed only four hits and three walks while striking out five, but did not factor into the decision. After... Read More

2 years ago

Derek Dietrich Homers in Marlins Win Tuesday

After not leaving the yard over his last 57 plate appearances, Miami Marlins outfielder Derek Dietrich hit a home run on Tuesday night against the Mets. The two-run shot in the eighth inning capped off a 2-for-4 performance for Dietrich, who finished with two runs and two RBI. Dietrich has been heating up over his... Read More

2 years ago

Trevor Rogers Makes Pro Debut at Single-A on Tuesday

After not pitching last year, Miami Marlins pitcher Trevor Rogers made his professional debut on Tuesday with the Marlins Single-A affiliate, the Greensboro Grasshoppers. Miami's first-round pick in last year's draft, Rogers pitched three innings and took the loss against the Kannapolis Intimidators, allowing three runs on four hits and two walks while striking out... Read More

2 years ago

Caleb Smith Strikes Out Eight in Win Tuesday

After going only three innings in his last start, Miami Marlins starter Caleb Smith had his longest start of May on Tuesday night, throwing 6 2/3 innings of one-run ball against the Mets. Smith allowed the one run on just three hits and two walks while striking out eight — the most in a start... Read More

2 years ago

Elieser Hernandez Pitches Well, Still Earns Loss Monday

Miami Marlins starting pitcher Elieser Hernandez had another good start on Monday against the Mets but was let down by his team's offense and earned his first loss of the season. Hernandez allowed one run on five hits while striking out three over five innings in just his second start of the year. In two... Read More

2 years ago

Hot Prospects to Watch Week 8: Peters, Ruiz, Reyes, Melendez

Another week goes by and yet another big name prospect gets called up. This time it's Washington Nationals outfielder Juan Soto who receives the call, and he wasted no time in making a splash by hitting his first career home run in his first career at bat. Soto was already a hot commodity in dynasty... Read More

2 years ago

Miguel Rojas Homers Twice in Marlins Loss Sunday

Miami Marlins shortstop Miguel Rojas had his first career multi-home run performance on Sunday afternoon, finishing 3-for-3 with two home runs, four RBI and three runs scored in the loss to the Braves. Sunday's performance brings Rojas to seven home runs on the year — or three more than he hit in his previous four... Read More

2 years ago

Odrisamer Despaigne Activated from DL, Dillon Peters Optioned

The Miami Marlins activated reliever Odrisamer Despaigne (forearm) from the 10-day disabled list on Monday, and in a corresponding move optioned reliever Dillon Peters to Triple-A New Orleans, reports Clark Spencer of the Miami Herald. Peters did not make an appearance for the Marlins in his most recent stint in the majors, leaving his season... Read More

2 years ago

Clint Frazier Optioned to Triple-A, Giovanny Gallegos Recalled

The New York Yankees optioned outfielder Clint Frazier to Triple-A Scranton/Wilkes-Barre on Sunday and in a corresponding move recalled reliever Giovanny Gallegos, according to's Bryan Hoch. Frazier made only one appearance with the Yankees in his brief stint, going 1-for-2 with a double and two walks on Saturday. Over four innings of work this... Read More

2 years ago

J.T. Realmuto Out of Lineup Saturday

Miami Marlins catcher J.T. Realmuto is out of the lineup on Saturday against the Braves. It appears this is nothing more than a day of rest, with Bryan Holaday getting the start instead. With Realmuto out, shortstop Miguel Rojas will be hitting out of the number two spot in the lineup for Miami.

2 years ago

Jonathan Schoop Homers in Orioles Win Friday

Orioles second baseman Jonathan Schoop hit his fourth home run of the season on Friday for his only hit of the night in the win against the Red Sox. Schoop finished 1-for-3 with one RBI, two runs and two walks — his first multi-walk game in almost exactly one year when he had two walks... Read More

2 years ago

Dan Straily Has Scoreless Outing Against Braves Friday

Things seem to be looking up for Marlins starter Dan Straily, who had his best outing of 2018 on Friday against the Braves. Straily allowed only three hits and three walks while striking out six over seven scoreless innings to earn the win. It was Straily's first scoreless outing since last June, and his first... Read More

2 years ago

Alex Cobb Picks Up First Win With Orioles Friday

It took seven starts for him to do so, but Baltimore Orioles starter Alex Cobb secured his first win of the season on Friday against the Red Sox. Cobb also picked up his third quality start of the season in the win, allowing three runs on 10 hits and one walk while striking out three... Read More

2 years ago

Zach Britton, Darren O'Day Nearing Return to Orioles

Baltimore Sun writer Eduardo Encina reports that Baltimore Orioles relievers Zach Britton (Achilles) and Darren O'Day (elbow) have both made progress in returning from their injuries. Working his way back from a ruptured Achilles tendon, Britton threw another bullpen session on Friday and is scheduled to pitch a simulated game on Tuesday in Chicago. O'Day... Read More

2 years ago

Adam Conley, Dillon Peters Recalled by Marlins Friday

The Marlins recalled left-handed pitchers Adam Conley and Dillon Peters from Triple-A New Orleans on Friday, according to's Joe Frisaro. Conley and Peters join Miami after the team optioned reliever Tyler Cloyd to Triple-A and designated reliever Junichi Tazawa for assignment on Thursday. Conley and Peters had both been part of the New Orleans... Read More

2 years ago

Junichi Tazawa Designated for Assignment, Tyler Cloyd Optioned Thursday

After allowing three runs on four hits and a walk over one inning against the Dodgers, the Miami Marlins designated reliever Junichi Tazawa for assignment following Thursday's game, according to Miami Herald writer Clark Spencer. Tazawa had allowed 21 runs (20 earned) on 28 hits and 13 walks with 24 strikeouts over 20 innings this... Read More

2 years ago

Buck Showalter Provides Injury Updates on Trio of Orioles

Baltimore Orioles manager Buck Showalter provided injury updates on infielders Engelb Vielma (knee) and Luis Sardinas (back) and outfielder Colby Rasmus (hip) prior to Thursday's game, according to Rich Dubroff of Dubroff reports that Vielma will have surgery on his right knee, but it is not believed to be a season-ending procedure. Meanwhile, Rasmus... Read More

2 years ago

Estevan Florial Leaves Game with Wrist Soreness

New York Yankees outfield prospect Estevan Florial left Thursday's game with the Tampa Tarpons due to "soreness" in his right wrist, according to's Sam Dykstra. There is no word yet as to the severity of the injury or as to how long he will be out. Florial is hitting .246 with a .696 OPS... Read More

2 years ago

Yankees Set Rotation for Series at Kansas City and Texas writer Bryan Hoch reports that the Yankees will have CC Sabathia start in their series opener at Kansas City on Friday, with Luis Severino and Sonny Gray starting in Games 2 and 3. Masahiro Tanaka will start on Monday for the series opener in Texas, and Domingo Germán will get the start Tuesday. Hoch... Read More

2 years ago

J.T. Realmuto Out of Lineup Thursday

After starting in six straight games, Miami Marlins catcher J.T. Realmuto is out of the lineup on Thursday against the Dodgers. This appears to just be a rest day for Realmuto, who hit his sixth home run of the season in Wednesday's win over the Dodgers. Bryan Holaday will get the start at catcher in... Read More

2 years ago

How to Deal with Robinson Cano in Dynasty

Fantasy owners were sent into a panic on Tuesday by the news that not only would Mariners second baseman Robinson Cano be out for a couple months following surgery on his fractured wrist, but he was also going to be suspended 80 games for violating the MLB Joint Drug Prevention and Treatment Program. After initial... Read More

2 years ago

Marlins Change Up Their Starting Rotation Wednesday

The Miami Marlins are making several changes to their starting rotation Wednesday, according to Joe Frisaro of Frisaro writes that Caleb Smith's start has been moved from Wednesday to Thursday, with Elieser Hernandez making his first start of the year on Wednesday against the Dodgers. With Hernandez moving into the rotation, Frisaro adds that... Read More

2 years ago

Darren O'Day's Bullpen Session Goes Well writer Roch Kubatko reports that Baltimore Orioles reliever Darren O'Day (elbow) threw a bullpen session on Wednesday that "went well." Kubatko adds that the team will see how O'Day reacts Thursday and if there are no issues, he could be activated from the disabled list on Friday. O'Day has been on the DL with... Read More

2 years ago

Martin Prado has Two-Hit Night Tuesday Against Dodgers

Slumping Marlins third baseman Martin Prado had his third multi-hit game of 2018 on Tuesday night, finishing 2-for-4 with a run scored against the Dodgers. Prado is finally showing signs of heating up with his second two-hit performance in his last five games, and he is now hitting .278 over that span. His power still... Read More

2 years ago

Andrew Cashner Will Start Wednesday

After Tuesday night's game against the Phillies was rained out, Baltimore Orioles starter Andrew Cashner will instead take the mound on Wednesday, writer Brittany Ghiroli reports. The Orioles had tabbed Miguel Castro as the starter for Wednesday, but now he may not be needed for the spot start while Chris Tillman is on the... Read More

2 years ago

Wei-Yin Chen Pitches Better in Abbreviated Start Tuesday

Miami Marlins starter Wei-Yin Chen lasted longer Tuesday against the Dodgers but was still unable to throw five innings for the third start in a row. Lasting 4 1/3 innings, Chen had his first scoreless outing of 2018, allowing three hits and three walks while striking out three. While it's a step in the right... Read More

2 years ago

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More Recent Articles


2020 Fantasy Baseball Sleepers - Yandy Diaz

The Tampa Bay Rays took a chance when they traded for Yandy Diaz last year. He is a Cuban-born player that broke into the MLB in 2017 with the Cleveland Indians. After two years of developing with partial playing time, he was traded to Tampa Bay in a three-way package deal. Diaz will break camp as... Read More

Kings of Candy: Sweet-Spot Risers

Sweet spot percentage (SwSp%) is not the best-known Statcast measurement. It doesn't care how hard you hit the ball, just at what trajectory. Well, it doesn't care about that either, it's just a statistic, it has no capacity to care about anything. But what it measures is the number of times a hitter's contact is between... Read More

When and How Do You Target Sleepers on Draft Day?

A popular buzzword this time of year is "sleeper." Every fantasy baseball writer, podcaster, and radio analyst wants you to know why their sleeper is the one you should be targeting on draft day. Conversely, your league mates hope you've never even heard of their sleeper. As I prepared to write this article, I found... Read More

Mike Soroka Will Not Live Up to Draft Price Expectations

Every year there are polarizing players in fantasy baseball. These polarizing players leave no room for middle ground. They are the catalyst for Twitter debates, articles, videos, podcasts, and by the end of it you are forced to chose a side: are you in or are you out? For those of you thinking, surely there... Read More

Second Basemen Set to Breakout in 2020

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Elite Starters and Pitching Trends Revisited

Last year I wrote a series [Part 1, Part 2, Part 3] on whether we were properly valuing elite starting pitchers. The basic premise was that we were likely to see fantasy-relevant starters (not openers) throw fewer innings again in 2019. I hypothesized that if there were fewer and fewer starting pitchers providing 200 innings... Read More

ADP Cost Analysis: Gleyber Torres vs Max Muncy

Fantasy baseball is a great game, and there may not be a better time of the season than draft prep. The numbers are flying around, and the group texts are saying that it's Acuna's year to be No. 1 while others take the "If it ain't broke, don't fix it" approach with Mike Trout. The... Read More

Announcing RotoBaller's New Live Draft Tool

Last season at RotoBaller, we released a set of interactive cheat sheets to help fantasy players prepare for their drafts and the upcoming season. This preseason we have updated these cheat sheets and have also added a brand new Live Draft Tool to give you an edge while drafting in real-time!  In addition to the Live... Read More

Evaluating OAA for Pitchers Changing Teams (12-Team Leagues)

Last week, I looked at Statcast’s new Outs Above Average (OAA) leaderboard, which they’ve used to identify the best defensive infielders in the league. My initial exploration of the metric was designed to identify pitchers who might have been lucky or unlucky last year as a way of mining for bounceback value or avoiding potential... Read More

Engel's Angles: ADP Insights, Perspectives on Aaron Judge and Ketel Marte (Premium Content)

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RotoBaller Friends & Family Industry Mock Draft: What the Experts Were Thinking

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H2H Points League Draft Strategy

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2020 Catcher Rankings - Fantasy Baseball Dynasty Leagues

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Questionable Closers: An Early Look at Some Unsettled Bullpens

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2020 Fantasy Baseball Sleepers – Aaron Civale

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XFL DFS Lineup Picks For Week 4: The Checkdown

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Dynasty Price Check: JuJu Smith-Schuster

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XFL Week 3 - Quarterback Risers and Fallers

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NFL Scouting Combine Preview - Woo Fantasy Podcast

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XFL Week 3 - Opportunity Risers and Fallers

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