Some pitchers throw fastballs. Others throw tantrums. Whether it was slamming a glove or barking at umpires, these guys made it clear they were never going to win a sportsmanship award.
They weren’t just fiery competitors—they were emotional volcanoes who erupted without much warning. Let’s count down 20 MLB pitchers who could’ve used a few deep breaths and maybe a stress ball or two.
20. Jonathan Papelbon

If you watched Papelbon pitch, you saw the veins in his neck do just as much work as his arm. He didn’t just get mad at opponents—he once tried to choke his teammate in the dugout.
19. Brett Myers

Myers had a cannon of an arm and a fuse just as short. Whether it was jawing with fans or flipping out on the mound, he was always one bad call away from boiling over.
18. Carlos Zambrano

Zambrano wasn’t content with just yelling—he destroyed Gatorade coolers with a fury that deserved its highlight reel. Umpires, teammates, bats—nothing was safe when Big Z lost it.
17. Roger Clemens

The Rocket’s rage was as legendary as his fastball. From beaning batters to chucking a broken bat at Mike Piazza, Clemens never quite learned how to let things go.
16. Josh Beckett

Beckett was a bulldog on the mound and a bulldozer in the clubhouse. He once told his critics to shove it and had no issue letting hitters know exactly how he felt.
15. Vicente Padilla

Padilla was known for drilling hitters without blinking and daring them to do something about it. He brought a Wild West energy to the mound that screamed, “Try me.”
14. John Rocker

Yes, he pitched angrily. And when he wasn’t pitching angrily, he was saying something offensive. Rocker was baseball’s resident chaos merchant for a hot second.
13. Chris Carpenter

Carpenter was one of the game’s great competitors, but his intensity sometimes veered into full meltdown mode. He’d bark at hitters, umpires, and occasionally his dugout.
12. Grant Balfour

They didn’t call it the “Balfour Rage” for nothing. This guy would scream into his glove, scream at himself, and scream at batters before throwing a pitch.
11. Milton Bradley (when he pitched in the minors)

He didn’t have a robust pitching career, but even in the minors, he made headlines for losing his composure. He was tossing tantrums just as fast as fastballs.
10. Mike Fiers

Fiers had a chip on his shoulder and no hesitation about letting everyone know. From dust-ups to accusations of sign stealing, his career had some severe heat beyond the mound.
9. Matt Garza

Garza didn’t bottle things up—he launched them, including water coolers and plenty of expletives. He often looked like a guy playing angry because he was.
8. Kyle Farnsworth

You didn’t want to charge the mound on Farnsworth unless you had a will written. The man once speared a batter as if it were WrestleMania.
7. Pedro Martinez

Pedro was a magician on the mound, but his temper flared when things didn’t go his way. Whether it was throwing Don Zimmer to the ground or drilling guys in retaliation, he could flip the switch.
6. Dennis Cook

This lefty had a knack for losing it spectacularly. From mound meltdowns to glove-tossing theatrics, Cook was never dull when the fire rose.
5. Jonathan Broxton

Broxton had a closer’s mentality but also a linebacker’s level of fury. When he blew a save, you knew the postgame locker room was not a peaceful place.
4. Rob Dibble

Part of the infamous “Nasty Boys,” Dibble once chucked a baseball into the stands out of frustration—and hit a woman. That pretty much sums up his whole deal.
3. Kevin Brown

Brown was old school in talent and tantrums. He once punched a wall and broke his hand, sidelining himself out of sheer rage.
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2. Randy Myers

You didn’t mess with Randy Myers. He had the stone-cold glare of a hitman and a temper that flared like a Fourth of July firework.
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1. Nolan Ryan

Ryan was the GOAT of angry pitchers. He once put Robin Ventura in a headlock mid-game and treated him like a speed bag, all while keeping a terrifying level of calm.
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