Buy Low, Sell High Fantasy Baseball Trade Advice for Week 3 (2026)

April 17, 2026

Joey's fantasy baseball buy low, sell high trade advice for Week 3 of 2026. His undervalued fantasy baseball trade targets and overvalued players to trade away.

Welcome, RotoBallers, to our weekly buy/sell fantasy baseball trades advice article for Week 3 of the 2026 season, highlighting the best players to trade for and trade away. Each week of the fantasy baseball season, this article will dive into the best trade targets and a few players to trade away before it's too late. 

For this week, we will discuss five trade candidates. Two players on this list are massive buy lows, one player is a buy high amid a strong start, and two players are sell highs. Knowing when to trade for and trade away certain players in fantasy is so important. Last week, Ketel Marte and Nick Kurtz were among the buy lows on this list. Both have since posted better numbers. 

So, which players should fantasy managers buy and sell for Week 3 of the fantasy baseball season? Let's find out!

Undervalued Fantasy Baseball Players to Trade For

Alex Bregman, 3B, Chicago Cubs

The Chicago Cubs made a splash this past offseason by signing third baseman Alex Bregman to a massive five-year deal. However, Bregman hasn't gotten off to a strong start at the plate. The veteran is batting just .215 with two home runs, six RBI, and eight walks across 16 games. He has only one extra-base hit since March 29, and his bat speed is down 1.1 mph from last year.

ALEX BREGMAN TIES THE GAME IN THE NINTH pic.twitter.com/MmqC9NbkrW

— Talkin' Baseball (@TalkinBaseball_) April 11, 2026

Although Bregman has not looked overly impressive in the early going, he is one of the better buy-lows at this point in the season. Slow starts have become the norm for the three-time All-Star in recent seasons. He batted .195 with four home runs and 15 RBI in his first 34 games in 2023 and then hit .189 with one home run and 11 RBI in his first 33 games in 2024.

Therefore, fantasy managers shouldn't be overreacting too much to Bregman's subpar numbers to begin the year. His numbers will eventually improve, and there are reasons to be optimistic that it could happen shortly. He ranks at the top of the league in average exit velocity (91 mph), hard-hit rate (49.1%), and squared-up rate (39%).

That's enough reason to trade for Bregman right now. He has been a consistent fantasy option in each of the past few years and should post solid fantasy numbers again at a weak position. The 32-year-old will likely hit around .265 with upward of 20 home runs, 70 runs scored, and 70 RBI by the end of the season.

Jordan Walker, OF, St. Louis Cardinals

There has been much discussion about whether Jordan Walker is a sell-high in fantasy following an incredible start to the season. Walker is slashing .339/.400/.780 with eight home runs, two doubles, 15 runs scored, and 15 RBI across 16 games. Both his eight home runs and .780 slugging percentage currently lead Major League Baseball.

The reason why some fantasy managers do not believe in Walker's potential breakout campaign is because of his prior track record. He struggled miserably in both the 2024 and 2025 campaigns, hitting a combined .211 with 11 home runs and 61 RBI across 162 games. Last year, the former first-round pick ranked in the bottom 3% of the league in expected batting average (.207) and strikeout rate (31.8%).

However, Walker is finally putting it all together. He's hitting offspeed pitches well and is finally smashing fastballs for the first time in his career. The tools were always there for the Cardinals slugger to produce at the Major League level. Now, the results are finally coming his way.

Jordan Walker extends his MLB home run lead with No. 8 💥 pic.twitter.com/QAUe4U83BX

— MLB (@MLB) April 14, 2026

While it might only be a 16-game sample size, Walker can be a fantasy star this year. That's why he's someone fantasy managers should be looking to buy high. He ranks in the 99th percentile or better in expected batting average (.340), expected slugging (.799), average exit velocity (97.1 mph), barrel rate (26.3%), and hard-hit rate (68.4%). With an elite 78.5 mph bat speed as well, the 23-year-old is a prime breakout candidate in 2026.

Konnor Griffin, SS, Pittsburgh Pirates

There's someone in your league who is frustrated by Konnor Griffin's slow start. He was hyped up to be this big-time prospect who drew comparisons to both Mike Trout and Bobby Witt Jr., and has looked a bit overmatched at the plate in the early going. Griffin is hitting just .152 with one double, five RBI, and one stolen base across his first 10 games.

Now, it won't be easy to trade for Griffin by any means. After all, he is the No. 1 prospect in baseball. But if the Griffin owner in your league is growing frustrated by his early struggles, see what it would take to acquire him. No fantasy manager should be panicking about him just yet.

It's going to take time for Griffin to figure things out. He is just 19 years old, and there is an adjustment period from the Minor Leagues to the Major Leagues. Some of the game's greatest hitters also struggled to begin their careers. Aaron Judge had a .172 batting average after his first 18 games, and Witt had just three hits in his first 28 at-bats before heating up in the summer months.

So, try to trade for him now while his value is at its lowest. It might cost a decent amount to actually acquire the rookie, but it could be worth it. Griffin will be a better fantasy player moving forward, especially as he gets more reps under his belt.

Overvalued Fantasy Baseball Players to Trade Away

Michael Wacha, SP, Kansas City Royals

Kansas City Royals starter Michael Wacha has been one of the best pitchers in baseball to start the season. He tossed six shutout innings with seven strikeouts against the Braves on March 28, delivered seven innings of one-run ball with three strikeouts against the Guardians on April 6, and threw eight scoreless innings with seven strikeouts against the White Sox in his most recent start on Saturday.

Those three dominant outings give Wacha a 0.43 ERA in the early going. He has allowed only one run across 21 innings pitched, and both his whiff rate (29.5%) and chase rate (34.6%) are up from last year. This strong start comes after the 34-year-old finished with solid all-around numbers during the 2025 season. The veteran had a 3.86 ERA and 126 strikeouts across 31 starts.

However, it's clear that Wacha is overperforming so far. His hard-hit rate (43.1%) and barrel rate (7.8%) both rank in the bottom half of the league, and he has never really been known as a strikeout pitcher in his career. The right-hander has finished with a strikeout rate under 23% in five consecutive seasons. So, regression is definitely coming his way over the next few weeks. That makes now the best time to sell him.

Brandon Nimmo, OF, Texas Rangers

Outfielder Brandon Nimmo is off to a blistering start with his new team. He is slashing .367/.433/.600 with three home runs, three doubles, nine RBI, and one stolen base in 15 games. Nimmo has hit the ball well in the early going, with a 28.2% squared up rate, a .299 expected batting average, and a .488 expected slugging percentage.

Like Wacha, though, Nimmo is slightly overperforming to start the season. The 33-year-old is not suddenly going to be a 30-home run hitter who also hits for a high average in his 11th Major League season. The veteran will eventually come back down to earth and be the hitter that he usually is. He'll likely finish with around a .260 batting average and somewhere around 20 home runs.

Brandon Nimmo's second homer of the night cuts the deficit in half 💪 pic.twitter.com/Kf7zLX71pX

— MLB (@MLB) April 12, 2026

Those latter numbers are fine, but that's exactly why Nimmo is a sell high. He's not going to keep up this tear at the plate, especially since his hard-hit rate (41.7%), average exit velocity (89.8 mph), and launch angle sweet-spot rate (33.3%) all rank around league average. Some regression could be coming his way, making now a good time to sell.

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