Buy Low, Sell High Fantasy Baseball Trade Advice for Week 14 (2025)

Joey's fantasy baseball buy low, sell high trade advice for Week 14 of 2025. His undervalued fantasy baseball trade targets and overvalued players to trade away.

Welcome, RotoBallers, to our weekly buy/sell article highlighting the best players to trade for and trade away. Every week up until your fantasy trade deadline, we will go through five players you should be buying and selling. With most fantasy leagues at the midway point of the regular season, it's time to be aggressive in trade talks. 

In this week's edition, we will go through five players fantasy managers should be trading for and trading away. The three buy-low options listed below should pick things up over the next few weeks, while the two sell-high options won't keep up their hot streaks. 

So, which players should fantasy managers buy and sell for Week 14 of the fantasy baseball season? Let's find out.  

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Undervalued Fantasy Baseball Players to Trade For

Yordan Alvarez, OF, Houston Astros 

It has been almost two months since Houston Astros outfielder Yordan Alvarez has appeared in a game. He was originally diagnosed with a muscle strain in his right hand in early May and landed on the 10-day injured list on May 5. Although there was optimism that Alvarez could return in a few weeks, the team eventually found a small fracture in his right hand toward the end of May. 

Since suffering that fractured hand, the slugger has made significant progress. He took batting practice on Sunday, and there's a chance he could return later this week. When asked if Alvarez could return for the Dodgers series that begins on July 4, Astros general manager Dana Brown said it's "not the most likely scenario, but we're not putting that aside."

Yordan Alvarez and Chas McCormick will head to West Palm Beach today to take live swings and at-bats in Florida against the group of pitchers who are rehabbing there.

— Brian McTaggart (@brianmctaggart) June 29, 2025

With a return on the horizon, Alvarez is the perfect player to buy low in Week 14. He is one of the best power-hitters in baseball when healthy, totaling at least 30 home runs and driving in over 85 runs in four straight seasons. Even though the three-time All-Star was off to a mediocre start in 2025, his overall numbers should improve. 

Alvarez had a .495 expected slugging, 11.9% barrel rate, 46.4% hard-hit rate, and a 40.5% launch angle sweet-spot rate through his first 29 games this season. So, it's time to trade for one of the best home run hitters in the game. 

David Peterson, SP, New York Mets

New York Mets starting pitcher David Peterson was one of the most consistent fantasy options to start the season. He had a 2.49 ERA through his first 13 starts and allowed two earned runs or fewer in 11 of those 13 outings. The southpaw was really on another level through the first couple of months in 2025. 

However, it hasn't been smooth sailing for Peterson over the last few weeks. He has given up at least three runs in three straight outings and has allowed five runs in each of his past two starts. In his most recent outing on Friday against the Pittsburgh Pirates, the 29-year-old allowed five runs on seven hits with three walks across 4 2/3 innings. 

Giving up five runs in back-to-back games has definitely hurt Peterson's overall numbers. That makes now the prime opportunity to trade for a pitcher who has posted consistent numbers on the mound since the start of the 2024 season. He finished with a 2.90 ERA and 101 strikeouts in 21 starts last year and has a solid 3.30 ERA across 16 outings in 2025. 

Therefore, fantasy managers should be looking to acquire Peterson in Week 14. Given how he looked against the Pirates last week, it might not cost a lot to trade for the 29-year-old. 

Roman Anthony, OF, Boston Red Sox 

Fantasy managers need to be patient with rookies. We often overreact after just a few weeks, and some of these rookies then go on to become strong fantasy options. Nick Kurtz is the perfect example of that this season. He had a .208 batting average with one home run and six RBI in his first 23 major league games. Kurtz is now hitting .299 with 11 home runs over his last 23 contests. 

As a result, if you have the chance to buy low on Boston Red Sox outfielder Roman Anthony, you should take advantage. Although Anthony has been somewhat disappointing in the early stages of his major league career, the metrics suggest that he has been a bit unlucky at the plate. For starters, his expected slugging (.478) is 139 points higher than his actual slugging (.339) through his first 19 career games. 

Roman Anthony today:

3-for-6 (1st career 3-hit game)
2 R
2 2B
5 TB

Our #1 prospect has an .884 OPS in his last 7 games👀 pic.twitter.com/lANGT0HzxY

— Just Baseball (@JustBB_Media) June 29, 2025

On top of that, his hard-hit rate (50%), barrel rate (15%), chase rate (18.5%), and walk rate (14.7%) all rank extremely well in his first 73 plate appearances. That makes Anthony one of the best players to buy low at this point in the season. There's a reason why he is the best prospect in baseball, and fantasy managers will see that as the season goes on. 

Overvalued Fantasy Baseball Players to Trade Away

Spencer Steer, 1B/OF, Cincinnati Reds

Cincinnati Reds first baseman Spencer Steer has been red-hot at the plate since the calendar flipped to June. Steer is batting .302 with five home runs, 16 RBI, and three stolen bases across 26 June games. He has been seeing the ball well in recent weeks and might finally be fully past that shoulder injury that limited his spring. 

When Steer is at his best, he is one of the best all-around fantasy players. He hit .271 with 23 home runs, 86 RBI, and 15 stolen bases across 156 games in 2023 and then hit .225 with 20 home runs, 92 RBI, and 25 stolen bases across 158 games last year. Nevertheless, the Reds first baseman is a classic sell-high candidate in Week 14.

Steer has poor metrics across the board, as his expected batting average (.238), expected slugging (.356), hard-hit rate (32.2%), and barrel rate (5.8%) all rank in the 25th percentile or worse this season. That means fantasy managers should use this hot streak and try to sell him before his numbers go back down. 

Before this hot stretch from Steer in June, he was hitting just .224 with four home runs and three stolen bases in his first 52 games. So, see what you can get for a player who has hit the ball well over the past month. 

Ranger Suarez, SP, Philadelphia Phillies

There aren't many negative things to say about Philadelphia Phillies starting pitcher Ranger Suarez. After allowing seven earned runs in his first start of the season on May 4, Suarez has been untouchable on the mound since then. He has a 2.00 ERA in his first 11 starts and has delivered 10 straight quality starts dating back to May 10. 

Ranger Suárez game log since May 10:

7.0 innings 0 ER 🔥
7.0 innings 3 ER 🔥
6.2 innings 0 ER 🔥
6.0 innings 0 ER 🔥
6.0 innings 1 ER 🔥
7.0 innings 2 ER 🔥
7.0 innings 0 ER 🔥
7.0 innings 1 ER 🔥
7.2 innings 1 ER 🔥
7.0 innings 1 ER 🔥 pic.twitter.com/d2b9fOu3je

— John Foley (@2008Philz) June 29, 2025

Given how well Suarez has pitched to begin the year, it wasn't easy to put him on this list. He isn't allowing much hard contact, and both his hard-hit rate (27.8%) and average exit velocity (85 mph) rank in the 99th percentile. However, we saw a similar start from the left-hander last year before he gassed out in the second half. 

Suarez had a 1.83 ERA and 99 strikeouts in his first 16 starts last year, but he wasn't as sharp on the mound over the final three months. The 29-year-old had a 6.54 ERA and 46 strikeouts over his final 11 outings in 2024. 

Additionally, Suarez will not pitch this well for the rest of the season. He continues to miss bats at a low clip (21.7% whiff rate), and his 23% strikeout rate ranks in the 53rd percentile. So, it's fair to assume the southpaw is being overvalued in most fantasy leagues right now. That means fantasy managers should capitalize on his strong start and trade him away while his value is at an all-time high.  

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