Ankle's good, but I'm just dealing with some issues with my...

Ankle's good, but I'm just dealing with some issues with my knee because of my ankle, ... Since it went bad, my ankle, my knee got a little weak. Well, weaker than it has been in the past...I was so angry (during the match), I just wanted to crack every racket. But I didn't do it. That's a plus...I wasn't even moving to any balls. I have tomorrow off so maybe that can help but I'll have to see what my therapist says.