Ohh… The drama machine between former teammates Jon Jones and Rashad Evans has come to an end, at least for now. Bones Jones must undergo surgery to repair a torn ligament in his thumb, according to MMAWeekly.
Stepping up, Mr. Wonderful Phil Davis (9-0) will replace him and face Rashad Evans in the co-main event at UFC 133 in Philadelphia.
“Dear people, I’m now fighting Rashad Evans in August … Forget what you thought you knew! Philly. UFC 133.” said Phil Davis via twitter.

If it's something he's worked through for years and he says he could have finished Rashad many times in practice, why wait. If you're that much better.