Every MLB fan loves a good slugger—the guys who launch baseballs into orbit and flip bats with swagger. But sometimes, those same power hitters turn into mysteries almost overnight, leaving fans wondering what on earth happened.
Whether it was a sudden drop in power, a bizarre swing change, or just a vibe shift that threw everything off, these players went from feared to forgotten in record time. Let’s count down 14 big bats who turned into big question marks.
14. Chris Davis

Once feared for his light-tower power, Chris Davis quickly became a case study in baseball decline. His swing didn’t just slump—it disappeared into the abyss.
13. Justin Upton

Upton had all the tools and was mashing bombs in his prime, but his production fell off a cliff. One minute, he was a lineup staple; the next, he was struggling to find a roster spot.
12. Ryan Howard

Howard was a home run machine in Philly, blasting baseballs like it was a video game. Then injuries and strikeouts caught up with him, and the magic fizzled fast.
11. Joey Gallo

When Gallo connects, it’s majestic—but that’s been the problem: he rarely connects anymore. His all-or-nothing approach became more “nothing” than “all.”
10. Miguel Sanó

Sanó could launch baseballs into the stratosphere, but consistency was never his friend. His bat speed stayed elite while his batting average went MIA.
9. Yoenis Céspedes

Céspedes had highlight-reel power and a cannon for an arm, but he couldn’t stay on the field. Between wild injuries and mysterious absences, he became baseball’s ultimate enigma.
8. Albert Pujols (Late Career)

Pujols will always be a legend, but his twilight years were a tough watch. The swing was still there, but the results just didn’t match the resume.
7. Khris Davis

He was Mr. .247 with serious pop, until one day he just wasn’t. His bat vanished so fast it felt like a glitch in the simulation.
6. Jay Bruce

Bruce brought thunder to the middle of every lineup he joined, until suddenly he didn’t. He hung around, but the power that defined him faded like a ghost.
5. Mark Reynolds

For a while, Reynolds was baseball’s king of the three true outcomes. Eventually, the strikeouts won the battle, and the homers stopped showing up.
4. Cody Bellinger

Bellinger went from MVP to baffling almost overnight. Whether it was injury, mechanics, or something cosmic, his swing got weird—and stayed weird.
3. Jason Bay

Bay was a legit slugger in Pittsburgh and Boston, but New York was his kryptonite. The moment he put on a Mets jersey, everything just fell apart.
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2. Chris Carter

Carter once led the league in homers, then couldn’t even find a team. His rise and fall were as steep as one of his towering fly balls.
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1. Adam Dunn

Dunn’s power was never in question—but his contact rate sure was. Toward the end, it felt like every swing was either a homer or a head-scratcher.