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Michael Arroyo Adjusting Well To Triple-A
Seattle Mariners middle-infield prospect Michael Arroyo has adjusted nicely since his call-up to Triple-A Tacoma. In 36 games with the Rainiers, Arroyo has hit .275 with seven homers and 30 RBI with 29 runs scored. The infield prospect comes in at No. 3 on the Mariners' updated prospect list and has a 55-grade hit tool with 55-grade power and 50-grade speed. Signed out of Colombia, Arroyo has fared well in his minor-league career and has one more step to go in his progression to complete the journey to the MLB. At age 21, Arroyo is worth taking a chance on in fantasy leagues, as the right-handed hitter could see a call-up to Seattle before the end of this season. He likely needs a bit more time in Triple-A to adjust, but the Mariners could reward the youngster with a promotion soon.
Source: Minor League Baseball
Source: Minor League Baseball
Bryan Woo Won't Make a Start This Weekend
Seattle Mariners right-hander Bryan Woo (shoulder) has been pushed back from this weekend's series against the Chicago Cubs due to discomfort in his right shoulder, according to Daniel Kramer of MLB.com. It is to be determined when he will make his next start, although manager Dan Wilson sounded optimistic that Woo will avoid a trip to the injured list. With Woo sidelined for now, the Mariners are calling up top left-handed pitching prospect Kade Anderson for his major-league debut on Saturday. Right-hander Bryce Miller will get the nod in the series finale on Sunday. Woo was pulled from his last start early last Sunday against the division-rival Houston Astros with something bothering his right shoulder, and the Mariners are going to play it safe and hold him out this weekend. Check back to see if the M's clear him to pitch in their upcoming series against the Philadelphia Phillies, which starts on Monday at T-Mobile Park. Woo finished off July by allowing 10 earned runs with 13 strikeouts and four walks in 10 innings in two starts against the Texas Rangers and Los Angeles Dodgers, but in his three starts so far in August, he's given up only two earned runs with three walks and 15 strikeouts in 18 innings versus the Detroit Tigers, New York Yankees, and Astros. UPDATE: Woo is scheduled to throw a bullpen session on Sunday.
Source: MLB.com - Daniel Kramer
Source: MLB.com - Daniel Kramer
Kade Anderson Has League-Winning Upside
Seattle Mariners pitching prospect Kade Anderson will make his major league debut on Saturday against the Chicago Cubs, and the left-hander is talented enough to win leagues for fantasy managers. Anderson was called up from Double-A Arkansas to make his start on Saturday, and he did nothing to disappoint while with the Travelers. He compiled a 10-1 record with a 1.06 ERA and 0.64 WHIP to go with 135 strikeouts in 93 1/3 innings pitched. The top overall prospect for the Mariners, Anderson is considered one of the best pitching prospects in all of baseball. The 22-year-old boasts a 60-grade fastball and changeup combination to go with a 55-grade curveball and slider. The 2025 first-round draft pick rose through the minors seemingly easily to make his MLB debut, and he has the stuff to reward fantasy managers who stashed him.
Source: Minor League Baseball
Source: Minor League Baseball
Kade Anderson is a Must-Add Ahead of Season Debut
Seattle Mariners top pitching prospect Kade Anderson is scheduled to make his season debut against the Chicago Cubs on Saturday. Anderson has earned a late-season call-up after posting fantastic numbers during his lone season in the minor leagues. The Mariners selected Anderson as the third overall pick during the 2025 June Amateur Draft. During his first year in Double-A Arkansas, Anderson posted a 1.06 ERA, 0.64 WHIP, and a 135/13 K/BB ratio across 93.1 innings of work. The 22-year-old is clearly ready to be promoted above Double-A, but the Mariners feel he's ready for the big leagues after 18 starts in the minors. Given his numbers, Anderson is a must-add player ahead of his big league debut versus the Cubbies on Saturday.
Source: Baseball Reference
Source: Baseball Reference
Kade Anderson to Make MLB Debut on Saturday
According to Jeff Passan, the Seattle Mariners are expected to call up top pitching prospect Kade Anderson to start Saturday's game against the Chicago Cubs. The Mariners selected Anderson with the third overall pick during the 2025 June Amateur Draft. The 22-year-old has been outstanding during his lone season in the minor leagues. Across 18 starts, Anderson holds a 1.06 ERA, 0.64 WHIP, and a 135/13 K/BB ratio in 93.1 innings of work with Double-A Arkansas. The Mariners have been sliding in the standings recently, so they hope Anderson can give them a much-needed boost. Given his stats in the minors, Anderson is looking like a must-add in all fantasy formats over the final six weeks of the regular season.
Source: Jeff Passan
Source: Jeff Passan
Taylor Ward Serving as DH in Return From Quad Injury
Seattle Mariners outfielder Taylor Ward (quadriceps) is back in the team's starting lineup for Wednesday's game on the road against the Milwaukee Brewers, serving as the designated hitter and batting eighth against right-hander Dustin May, per MLB.com. Ward is returning to action after missing each of the last five games due to a quad injury. Dominic Canzone is starting in right field and will bat third for the M's. Fantasy managers who have Ward rostered might want to think about keeping him benched until he can show some signs of life at the plate. The 32-year-old right-handed slugger has not been able to find his power stroke this year and has only seven long balls after clubbing a career-high 36 homers and driving in 103 in a career year with the Los Angeles Angels in 2025. Since joining Seattle at the trade deadline, Ward has gone 5-for-32 (.156) at the plate with zero homers, zero walks, and six strikeouts in eight games. He has one hit in just three career at-bats against May.
Source: MLB.com
Source: MLB.com
Lazaro Montes a Prime Stash Option for Power Upside
Seattle Mariners outfield prospect Lazaro Montes is fitting in just fine at Triple-A Tacoma, slashing .279/.361/.581 with 10 home runs in just 33 games for the Rainiers. His 35 home runs, spread across two levels, are the second-most in the minors this season. Although there is a lot of swing-and-miss in his profile, solid walk rates (10.1 percent at Triple-A) and prodigious power make up for it, with his average exit velocity, barrel rate, and hard-hit rate all coming in at 93rd percentile or better at Triple-A. There is a decent chance the left-handed slugger makes his MLB debut in the coming weeks, and he may end up being a drain on batting average in the majors, but his home run upside could be worth the risk for managers who can absorb the hit. The 21-year-old is one of the better stash options for power on the waiver wire for the stretch run.
Source: MiLB.com
Source: MiLB.com
Taylor Ward Missing Fifth Straight Game on Tuesday
Seattle Mariners outfielder Taylor Ward (quadriceps) is missing a fifth straight game on Tuesday against the Milwaukee Brewers on the road, per MLB.com. Victor Robles, who is returning from a shoulder injury, will start in right field for the M's and will hit eighth against Brewers left-hander Kyle Harrison. Ward's disappointing season continues, and he now must be considered a prime candidate to land on the injured list if he cannot return during the series this week in Milwaukee. The 32-year-old right-handed slugger hit .246/.383/.346 with a .730 OPS, seven home runs, 30 RBI, 64 runs scored, and four stolen bases in 111 games to begin the year with the Baltimore Orioles before being traded to Seattle at the deadline earlier this month. Since landing with the Mariners, Ward has gone 5-for-32 (.156) with no walks and six strikeouts as he continues to be dropped in fantasy leagues. He is now only rostered in 64% of Yahoo leagues after setting career highs with 36 homers and 103 RBI in 2025 in his final season with the Los Angeles Angels.
Source: MLB.com
Source: MLB.com
Kade Anderson a Must-Stash with Clear Path to MLB Innings
Seattle Mariners pitching prospect Kade Anderson's dream season continued in his latest start this past Friday, allowing zero earned runs for the fourth consecutive contest and the 13th time in 18 total starts. The performance lowered his season-long ERA to a miserly 1.08, with a 0.64 WHIP, and an elite 36.6 percent K-BB%. All of those statistics, along with his 135 strikeouts and 13.67 K/9, are all the best in the minors among pitchers with at least 60 innings pitched. The former third-overall draft pick is positioned to debut in the majors in the coming weeks, with Mariners president of baseball operations Jerry Dipoto confirming that the lefty will be a starter, not a reliever, whenever the team decides the time is right to call him up. At this point, it looks like he'll make the leap to the majors straight from Double-A, and it could be soon, with Bryce Miller struggling mightily over his last six starts (6.12 ERA, 1.52 WHIP, 7.6 K-BB%). Anderson should be considered the top pitcher to stash in all redraft leagues for the stretch run.
Source: MiLB.com
Source: MiLB.com
Cole Young's Stable Production Floor Gives Him Deep-League Appeal
Across 501 plate appearances in 2026, Seattle Mariners second baseman Cole Young is hitting .260/.318/.405 with 15 home runs, 56 RBI, 58 runs scored, and three stolen bases. The 23-year-old's underlying batted ball metrics are underwhelming, as he's posted a 4.7% barrel rate and a 39.1% hard-hit rate. However, Young has quietly made some power gains over the course of the season. After hitting just four homers through his first 237 trips to the plate, Young has gone deep 11 times in his last 264 plate appearances. Young has also logged a strong 16.4% strikeout rate, which keeps his batting average floor high. He may not offer tremendous fantasy upside, but Young is locked into everyday playing time in Seattle and brings a stable production floor. In deeper leagues, Young is worth targeting on the waiver wire.
Source: RotoBaller
Source: RotoBaller
Michael Arroyo Looking Like Strong Stash Candidate
Seattle Mariners infield/outfield prospect Michael Arroyo has adjusted well since being promoted to Triple-A Tacoma on July 7. In 32 games with Tacoma, Arroyo has hit .286 with six homers and 27 RBI to go with 26 runs scored. The 21-year-old, with the ability to play infield or outfield, is quickly rising up the prospect rankings for Seattle and is now the No. 3 prospect in the Mariners' system. He boasts a 55-grade hit tool and 50-grade power and speed. He's totaled 15 stolen bases between Double-A Arkansas and Tacoma and has proven he can be a threat on the base paths. With his position versatility, look for Arroyo to get an opportunity at some point this year with the big league club. When he does, he should be a good addition to fantasy squads because of his all-around game and his power-speed combination.
Source: Minor League Baseball
Source: Minor League Baseball
Lazaro Montes Continuing to Show Power at Triple-A
Seattle Mariners outfield prospect Lazaro Montes has three homers in his last five games after going on a three-game homer streak on Wednesday at Triple-A Tacoma. That brought Montes' homer total on the season to 35 between Double-A Arkansas and Tacoma. He has 87 combined RBI with 92 runs scored while hitting .251. The 21-year-old left-handed hitter is the No. 5 prospect in the Mariners system and has an elite power profile with 65-grade power. His hit tool is graded at 45, so his overall hitting and batting average could be a question mark for fantasy purposes, but his power display this season should leave fantasy managers anticipating his promotion to Seattle for an MLB debut. The Mariners could certainly use Montes' powerful bat in their lineup and he looks like a good end-of-season stash just in case he gets the call up.
Source: Minor League Baseball
Source: Minor League Baseball
Bryan Woo Pulled as a Precaution With Shoulder Soreness
Seattle Mariners right-hander Bryan Woo (shoulder) was pulled from Sunday's game against the division-rival Houston Astros after only 75 pitches because he was dealing with a little bit of soreness in his right shoulder, with manager Dan Wilson calling the early exit precautionary, per Shannon Drayer. Woo stayed in the contest long enough to earn his ninth win of the year, allowing two earned runs on three hits (two homers) while walking one and striking out five in six innings of work for a quality start as well. Because the Mariners don't seem too concerned about Woo's shoulder, fantasy managers should expect him to make his next start next weekend at home against the Chicago Cubs. After his quality start on Sunday evening on the road at Daikin Park in the 3-2 victory, Woo is now 9-8 in 2026 with a 4.10 ERA and 137 strikeouts in 138 1/3 innings pitched across his 24 starts. The former sixth-rounder in 2021 from Cal Poly gave up 10 earned runs in 10 innings in his final two starts in July, but he has now allowed just two earned runs in 18 innings over his last three starts against the Astros, Detroit Tigers, and New York Yankees.
Source: Shannon Drayer
Source: Shannon Drayer
Taylor Ward Missing Fourth Straight Game on Sunday
Seattle Mariners outfielder Taylor Ward (quadriceps) is sitting out his fourth straight game on Sunday night versus the division-rival Houston Astros, per MLB.com. Dominic Canzone is in right field and is batting third against Astros right-hander Hunter Brown. If Ward cannot return following Monday's scheduled day off for Tuesday's series opener against the Milwaukee Brewers on the road, he could be forced to the injured list. The 32-year-old veteran right-handed slugger has been a major disappointment for his fantasy managers in 2026, as he enters Sunday's action slashing .240/.370/.337 with a .707 OPS, only seven home runs, 30 RBI, 65 runs scored, and four stolen bases in 442 at-bats after hitting a career-high 36 home runs and driving in 103 runs in 157 games played for the Los Angeles Angels last year. Since being acquired from the Baltimore Orioles at the trade deadline on Aug. 3, Ward has gone 5-for-32 (.156) at the plate with the M's with no home runs, no walks, and six strikeouts in 32 plate appearances.
Source: MLB.com
Source: MLB.com
Michael Arroyo Could Be Next Prospect to Earn the Call in Seattle
Seattle Mariners middle-infield prospect Michael Arroyo has fared well at Triple-A Tacoma since his promotion and could be next in line for a call-up to Seattle, following in the footsteps of Tacoma teammate Brock Rodden. Arroyo has played in 31 games for Tacoma this season and has six homers and 27 RBI while hitting .295. Arroyo, the right-handed hitter out of Colombia, is the No. 3 prospect on the Mariners list. The infielder has a balanced profile with a 55-grade hit tool and power with 50-grade speed. At age 21, he could be ready for his next step to the majors but might need a little more time at Triple-A. Nonetheless, he is looking like a good stash candidate and one that could reward fantasy managers with five-category production given an opportunity to make his MLB debut.
Source: Minor League Baseball
Source: Minor League Baseball
