Fantasy Baseball Players Experts are Worried About in 2026 (Vinnie Pasquantino, Geraldo Perdomo, Jakob Marsee)

It’s still early, but that doesn’t mean fantasy baseball managers can ignore the warning signs.

Every season, a handful of players stumble out of the gate, whether it’s a dip in underlying metrics, reduced playing time, or simply results that don’t match expectations. While some slow starts are just noise, others signal deeper concerns that could linger well into the season.

In this Featured Pros roundup, our experts break down three fantasy baseball players who are causing early concern in 2026. From struggling stars to surprising disappointments, these insights will help you decide whether to stay patient, explore trade options, or start planning an exit before it’s too late.

Fantasy Baseball Players Experts are Worried About

Which underperforming hitter are you most worried about? Why?

Vinnie Pasquantino (1B – KC)

“Vinnie Pasquantino thinks April Fools lasts all month, not just a single day. Time for the Big Italian to hit a home run, or this may turn from a season where 30+ HRs seemed automatic to one where 20+ HRs would be considered good enough. The WBC superstar cannot hit a ball over the fence, and a 1B that has no power, hitting .153 is the easiest way to tank a fantasy baseball team.”
– Muntradamus (Beast Dome)

“Maybe it’s because I was so IN on him, but Vinnie Pasquantino has me concerned that it is more than just a slow start. He is currently slashing .136/.246/.169, with zero home runs and a 23.2% strikeout rate, which is 10% higher than his average. The bigger reason I’m worried is that his hard-hit rate is 28.9% and his barrel rate is 2.2%, both of which are extremely low after 69 plate appearances. His xSLG is a measly .272, so it’s not like he is simply unlucky. When I’m looking longingly at people who currently roster Josh Bell, I know we are in trouble.”
– Kelly Kirby (FantasyPros)

Geraldo Perdomo (SS – ARI)

“I was afraid Geraldo Perdomo would have a letdown season after last year’s breakout, which could turn out to be an outlier. So far, despite incredible plate discipline (more than twice as many walks as strikeouts!), he’s not hitting for average or power. He’s always posted Barrel and Hard-Hit rates near the bottom of the league, like he’s doing now. He’ll come around to some extent and should hit closer to his 2024 mark of .273, but the 20 homers from last year were an anomaly.”
– Pierre Camus (Fantasy Endgame)

Jakob Marsee (OF – MIA)

“Things are unraveling for Jakob Marsee this season. After hitting .292, Marsee is hitting just .152 with an xBA of .178. His barrel percentage has dropped from 8% last year to just 2% this season. Though he is getting the ball in the air and pulling it, which should help some in the future, his inability to hit fastballs is a concern. Pitchers are throwing it more to him, at a 63% clip, and he’s hitting just .111. He can still be a fantasy hold, but without an upper-tier batting average, he might float as a streaming hitter for some of the year.”
– Chris Welsh (FantasyPros)

If you want to dive deeper into fantasy baseball, be sure to check out our award-winning slate of Fantasy Baseball Tools as you navigate your season. From our Lineup Assistant – which provides your optimal lineup, based on accurate consensus projections – to our Waiver Wire Assistant – that allows you to quickly see which available players will improve your team, and by how much – we’ve got you covered this fantasy baseball season.