The knee just isn't 100 percent, ... It's hard to be out there when you know that you can't play at your best and could potentially make it worse.
I like playing Jennifer a lot, I really do. She brings out the best in me.
When you're playing the best player in the world, you've got to play well.
You just have to prove to yourself that you can go out there and be the best that you can be and not prove anything to anyone.