Fantasy Baseball Trade Targets - Buy/Sell for Week 6 (2025)

Fantasy baseball trade candidates to buy/sell for Week 6 (2025). Joey's fantasy baseball undervalued players to target in trades, and overvalued to trade away.

The best way to upgrade your fantasy team at this point in the season is by trading. Buying low on players who might be struggling could go a long way for your team in the coming weeks. On the other hand, trading away players who might be on heaters at the plate could work out long-term for your fantasy team. 

In this article, we will look at five players fantasy managers should be buying/selling heading into Week 6 (May 5 to May 11) of the fantasy baseball season. The buy-low options are players currently undervalued in most fantasy leagues, and the sell-high options are players overvalued in most fantasy formats. 

So, which players should we buy and sell for Week 6 of the 2025 fantasy baseball season? Let's dive in and find out which players make the list. 

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Undervalued Fantasy Baseball Players to Trade For

Dylan Cease, SP, San Diego Padres

It has not been a strong start to the season for San Diego Padres starting pitcher Dylan Cease. Cease owns a 5.76 ERA across his first six outings and has gone under five innings in three of those six starts. As a result, the right-hander's fantasy value is surely down following his inconsistent first month. 

Despite that, Cease is worth trading for in most leagues as we look ahead to Week 6. He has been one of the most consistent fantasy pitchers in recent years and almost never misses time. The right-hander has started at least 32 games in four straight years. There are also reasons to believe the veteran will post better numbers on the mound in the coming weeks. 

He will face the Pittsburgh Pirates (Week 5), New York Yankees (Week 6), Los Angeles Angels (Week 7), Toronto Blue Jays (Week 8), Atlanta Braves (Week 8), and Pittsburgh Pirates (Week 9) across the next month. Of those six opponents, only the Yankees are a tough matchup for the Padres' pitcher. So, now is the perfect time to trade for Cease. 

Dylan Cease held the Astros to 2 runs over 5 innings, striking out 6 and allowing zero barrels.

The slider did the heavy lifting, thrown over 50% of the time with a 45.5% whiff rate. Fastball averaged 97.3 and graded out at 111 proStuff+.

Velo + movement = nasty. pic.twitter.com/TMy32tcuSJ

— Pitch Profiler (@pitchprofiler) April 21, 2025

While his strikeout rate (26.5%) is a bit down in the early going, Cease's chase rate (30.9%) and whiff rate (29.4%) both rank solid after the first month. That means fantasy managers should be making a move for him now while his overall numbers are down.

It's only a matter of time until we see Cease return to that All-Star form. He has struck out over 210 batters in four consecutive seasons. 

Matt McLain, 2B, Cincinnati Reds

It's not a complete shock to see Cincinnati Reds second baseman Matt McLain struggle to begin the season. He missed the final month of his rookie campaign in 2023 due to an oblique strain and then missed the entire 2024 season after injuring his shoulder in spring training. Therefore, it was always going to take McLain some time to get going again. 

His slow start, though, has certainly made some fantasy managers impatient with him. He is currently hitting .161 with four home runs, one double, 11 RBI, and five stolen bases through his first 23 games. However, we shouldn't overreact too much to his slow start because McLain has shown some encouraging things. 

His 15.7% barrel rate, 29.1 ft/sec sprint speed, 47.1% hard-hit rate, and 21.5% chase rate all rank in the 70th percentile or better to start the season. That makes McLain a great buy-low option heading into Week 6. Don't forget he hit .290 with 16 home runs and 14 stolen bases in just 89 games back during his rookie campaign.

That's the type of upside you're getting with the Reds' second baseman. 

Anthony Santander, OF, Toronto Blue Jays

When the Toronto Blue Jays signed outfielder Anthony Santander to a massive five-year, $92.5 million deal this offseason, they expected him to be a super reliable bat in their lineup. Santander, though, has been anything but a reliable bat in that Toronto lineup. He'll enter the weekend with a .178 batting average,  four home runs, 12 RBI, and 31 strikeouts across his first 29 games. 

There's no doubt that Santander has struggled to begin his Blue Jays tenure. However, fantasy managers should bet on the talent and try to acquire him ahead of Week 6. This is a player who has hit at least 28 home runs and driven in over 85 runs in three straight seasons. Therefore, things should eventually even out for the switch-hitting outfielder. 

Adiós, April 👋#BlueJays Manager John Schneider forecasts big things from Anthony Santander as the season rolls on. #LightsUpLetsGo

(H/T @BlueJays) pic.twitter.com/LkjE8VrplA

— Sportsnet 590 The FAN (@FAN590) May 1, 2025

Santander also had a similar rough stretch to begin the 2024 season. He was slashing just .201/.284/.425 with nine home runs, 29 RBI, and 40 strikeouts through his first 48 games. Those struggles didn't last forever, as he hit a combined .282 with 22 home runs and 44 RBI in June and July. So, buy low on the Blue Jays slugger before his bat starts to heat up in the summer months. 

Overvalued Fantasy Baseball Players to Trade Away

Noelvi Marte, 3B, Cincinnati Reds

After missing most of the 2024 season due to a suspension, we are starting to see why Cincinnati Reds third baseman Noelvi Marte was once a top-15 prospect in all of baseball. Marte has come out of nowhere to become a strong fantasy option for managers in recent weeks.

He is hitting .328 with three home runs, 17 RBI, and four stolen bases across 16 games this season. 

Marte was first promoted to the major league roster at the beginning of April when McLain went down with a hamstring injury. Although the 23-year-old was optioned back down once McLain returned, he found himself back with the Reds when Christian Encarnacion-Strand (back) landed on the 10-day injured list. 

Now, it appears that he is here to stay. 

Unfortunately, Marte is someone fantasy managers should be looking to sell because some regression could be coming for the 23-year-old. His hard-hit (31.1%), chase rate (32.1%), and barrel rate (6.7%) all rank extremely poor. As a result, try to get rid of him now while his overall numbers are strong. 

Andy Pages, OF, Los Angeles Dodgers

Los Angeles Dodgers outfielder Andy Pages has been red-hot at the plate over the past week. He has 18 hits over his last 33 at-bats (.545 AVG) to go with four home runs, three doubles, nine RBI, and three stolen bases during that span. This strong stretch has lifted Pages' season slash line to .292/.370/.521 on the year. 

Stay hot, Andy Pages. 🔥 pic.twitter.com/HpNC1mmlkr

— Los Angeles Dodgers (@Dodgers) April 30, 2025

With Pages in the middle of the best stretch of his career, it might be time to sell him before Week 6 begins. He isn't necessarily making hard contact, and this hot streak won't last forever for the 24-year-old. His hard-hit rate (30%), squared-up rate (16.3%), and barrel rate (8.6%) all rank in the bottom half of the league. 

We also saw a similar stretch from Pages to begin the 2024 season after the Dodgers outfielder hit .308 with four home runs and 13 RBI through the first 20 games. However, he hit just .234 with nine home runs and 33 RBI over his final 96 contests last year.

Therefore, fantasy managers should be looking to sell him. His poor metrics don't bode well for his long-term fantasy value in 2025. 

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