He's a 23-yo multimillionaire who won't be able to play for a couple of months. It sucks for any athlete -whether pro or amateur- to be away from the sport, but it's not like he's got any serious condition threatening his life or like he hasn't faced more severe injuries before. And it's not like his professional future (which goes well beyond his basketball career, however short or long it may be) is in jeopardy either.
There's way too much drama in this thread. Wish the guy a speedy recovery and better luck with injuries in the future, and stop moaning and pointing fingers at whoever doesn't claim to be gutted and heartbroken by this. There are real problems in life (I'm sure Exum will face them too, just not because of a freaking tear on his patellar tendon). It's ridiculous.