Saturday's Game 4 between the Philadelphia 76ers and Miami Heat has been a feisty one, with all kinds of mania sprouting from wild turnovers, hard fouls and in-game skirmishes. In one dust-up, Josh Richardson and Justise Winslow were both sent to the Heat locker room, with the latter getting bloodied over the left eye and requiring stitches, and that wasn't even the wildest thing happening at that moment!

While Richardson and Winslow found themselves on the floor after a loose ball, Philadelphia's Ben Simmons and Miami's James Johnson found themselves tangled up with each other after Robert Covington fouled Goran Dragic on a breakaway. Yes, a lot was going on:

The thing is, James Johnson holds a second-degree black belt in karate, and he's also undefeated in seven MMA matches as well as 20 kickboxing matches. In one notable anecdote retold to Grantland, former teammates from Johnson's first stint with the Toronto Raptors talked about the time he hit rim with a spinning heel kick. Basically, he isn't the guy you want to try anything with.

Predictably, basketball Twitter had jokes:

h/t Kenny Ducey on Twitter