Can he come back from 2 sets down? (SPOILER)?

The record of Federer to come back 2 sets down to win the match is 3 times. Yeah. He did came back 2 sets down against Nadal but that was way back in 2005 in Miami Masters Series. Now the chances for Federer to come back is slim as Nadal is in his prime. My only concern is whether Nadal's injury will stop him from winning the title.