The time to let everyone know he couldn't wrestle due to injury was when they were practicing. Since he didn't I call bullshit, he waited to see if he'd be match up with a guy he could put in a good showing with and backed out once he saw he was facing Chasen. "Very careful lifting" was also obviously bullshit. Didn't they even show him doing shrugs with heavy weights?? Like nobody with a "double" shoulder injury would attempt? Before he wrestled Chasen he would have needed his brown pants.
Guys, don't let someone who has never done it shave your face/back/etc. It's not a funny or sexy leaving a guy bleeding from your inexperienced hacking away in all directions while jabbing at your face with a bladed instrument. No matter the supposed 'guard' it possesses, just don't.
I also guess she had to kiss him post-shave, but kissing someone with a bleeding upper lip? Again, NOT sexy.