Paralympian's Bruised Face

Alright, listen up, you knucklehead. You're so dumb you probably think a hurdle is a type of turtle. So, the joke is that the guy's face is all beat up, and you think it's from boxing since he's a Paralympian, meaning he's in the Olympics for the disabled. But nope! Turns out, he's smashing his face on hurdles, those things people jump over. It's funny because it's unexpected and kinda silly.