Baseball might be a gentleman’s game, but that doesn’t mean everyone keeps their cool. Some players wear their emotions like their favorite glove, unleashing their passion, frustration, and sometimes pure rage for all to see.
From legendary dugout meltdowns to spectacular ejections, these stars never shied away from making their feelings known. Here are 20 of the most emotionally volatile MLB players of all time.
20. Jonathan Papelbon

Papelbon had a reputation for being a bit of a loose cannon on the mound. Whether it was screaming at teammates or getting into physical altercations, the former Red Sox and Phillies closer never shied away from a confrontation.
19. Milton Bradley

Bradley’s career was defined as much by his explosive personality as his athleticism. He clashed with managers, fans, and umpires alike, creating a highlight reel of on-field outbursts that made even his teammates wince.
18. Carlos Zambrano

“Big Z” was known for his overpowering fastball and even more overpowering temper. He famously destroyed a Gatorade cooler with a bat in a fit of rage and had a few dugout dust-ups with teammates along the way.
17. George Brett

Brett’s fiery side reached legendary status during the infamous “Pine Tar Incident” in 1983. His furious charge out of the dugout remains one of baseball’s most iconic meltdowns.
16. Yasiel Puig

Puig brought his high-octane style to the majors and wasn’t afraid to let his emotions fly. From bat flips to benches-clearing scuffles, Puig made as many headlines for his antics as for his bat.
15. Lou Piniella

Known as much for his managerial tirades as his playing days, Piniella perfected the art of the on-field meltdown. Kicking dirt, tossing bases, and screaming at umpires were just part of his playbook.
14. Bryce Harper

Harper’s intensity can boil over in an instant, and he’s never been one to hold his tongue. Whether jawing with umpires or charging the mound, he’s had his share of emotional explosions.
13. Albert Belle

Belle’s powerful swing was matched only by his explosive temper. He once chased down a heckling fan in the stands and regularly clashed with media members.
12. Manny Ramirez

“Manny being Manny” wasn’t always a lighthearted catchphrase. He had his fair share of emotional outbursts, from shoving elderly traveling secretaries to sparring with teammates.
11. Reggie Jackson

Jackson’s swagger came with a hefty dose of attitude. From public clashes with managers to on-field confrontations, Mr. October was as fiery as they come.
10. David Ortiz

Big Papi may be beloved now, but his passion sometimes spilled over. He once smashed a dugout phone to pieces after a disputed strike call, sending splinters flying.
9. Jose Bautista

The bat flip that shook the world was just one example of Bautista’s intense emotional side. His on-field swagger and fierce confrontations made him a polarizing figure.
8. Roger Clemens

Few pitchers had a more intimidating presence on the mound, and Clemens had the attitude to match. He wasn’t shy about throwing at hitters or getting in their faces.
7. A.J. Pierzynski

Known as one of the most polarizing figures in baseball, Pierzynski’s fiery personality led to countless scuffles and verbal spats, even with his own teammates.
6. Barry Bonds

Bonds may be one of the greatest hitters of all time, but he also had a notorious temper. His prickly relationship with the media and occasional on-field flare-ups kept him in the headlines.
5. Pedro Martinez

Martinez could make a batter look foolish and then stare them down like he just caught them stealing his lunch money. His fiery side was on full display in numerous bench-clearing incidents.
4. Kevin Brown

Brown’s competitive fire was unmatched, but it often burned too hot. He once punched a wall in frustration, breaking his hand and effectively ending his season.
3. George Bell

Bell’s intense personality and quick temper made him a fearsome presence at the plate. He had no problem taking on opposing pitchers or umpires when things got heated.
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2. John Rocker

Rocker’s outspokenness and confrontational attitude made him one of the most divisive figures in baseball. He never missed a chance to throw verbal jabs at fans or opposing players.
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1. Lou Gehrig

Yes, the Iron Horse. While Gehrig is often remembered as the quiet, humble Yankee, teammates knew he had a fiercely competitive streak and wasn’t afraid to stand up for himself in the heat of battle.