In addition to unnecessary round-the-clock ESPN coverage, NFL training camps have been marred with fist fights this preseason. The Cowboys, Rams, Eagles, Ravens, Texans and Washington football team have all been involved in altercations.

Obviously, not everyone is cut out for a fighter's life. Tim Tebow went as far as breaking up a scuffle between Philadelphia and Baltimore's third-team offense and defense, respectively.

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But there are other players in the NFL who—suffice to say—would make you reconsider knuckling up.

Steve Smith

Make no mistake, Steve Smith is always looking for a fight.

Former Patriots quarterback Scott Zolak made that abundantly clear after he recalled an incident involving Smith and tight end Jermaine Wiggins.

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"So [Smith] sees Wiggy and he's like, 'Yo, what's up?' [Wiggy] says, 'Hey, Steve, what's up?' [Smith] is like, 'No, dude, what the [bleep's] up?' Wiggy's like, 'Aw, now, now you're swearing in front of my kids (Wiggins wife and two sons were with him), '" Zolak said on the Felger & Mazz show in Boston, per the New York Post. "And he's like, 'You gotta step up.' And then it starts getting nasty.

"Steve's like, 'Man, you called me a bully. What's up with that? You know what I'm going to do? I'm going to [bleep] you, right now.'"

Even on the field, Smith has always proven that will be the case.

Dez Bryant

Pay close attention to Dez Bryant getting walloped by Imoan Claiborne. No helmet on and hardly a flinch.

That's the sign of a man who's been in more than enough scuffles in his life. There's not a punch you can throw that he hasn't already seen. It's best to not even bother.

J.J. Watt

Between the hot kale and granola, how many calories do you consume in a day? Whatever it is, it pales in comparison to J.J. Watt's "diet."

Following a workout in February, Watt noticed his body was lacking.

"My body was grabbing for something that wasn't there," Watt said, per ESPN. "It was trying to fuel itself with no fuel."

Refueling culminated in 9,000 calories. The man's diet allows him to eat you for breakfast and have enough calories left over for a protein shake.

Marshawn Lynch

Forget the fact that Marshawn Lynch grew up in one of the toughest neighborhoods in Oakland, concentrate on the fact that he once told Deion Sanders in an interview, "I'm just about that action, boss."

James Harrison

James Harrison won't let his children have the joy of lifting a participation trophy. Not even his own kids walk away happy. What kind of chance will you have?

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