I'm pretty sure the Celtics wouldn't have gave them an unprotected first round pick for Crawford, it would have probably been protected for a number of years and the Wizard probably didn't want Fab whatsoever, so yeah, the deal wasn't exactly bad for them. Also Crawford is a horrible chucker that has no team sense in him, I hardly see how they lost the trade when they just removed another bonehead on their team like they did with Blatche(who has turned out great) and McGee.
"Kobe first injured this shoulder in the preseason, according to sources. Has been playing w/ it all year. It just got worse last night"
After suffering the injury, he simply started shooting with his left hand rather than leaving the game.