That's possibly the worst injury he could sustain. It robs you of so much explosiveness and drive. Obviously Kobe isn't a kamikaze slasher at this point in his career, but an inability to get lift and separation on his jump shot could be a death knell.
I can't believe I'm saying this, but I hope it's just a strain.
A great shot is when you pull it off. A smart shot is when you don't have the guts to try.