Federer did not play well today in general off the ground or return. His serve was keeping in the match, but let him down once in the first set. Del Potro played a brilliant first set and put pressure on Federer to win the set. Federer picked up his game a bit in the second set, and played fairly well at the end in the tiebreaker, while Del Potro's level dipped. Here and there, Federer made some brilliant shots, but they were far and few between. Then in the 3rd, Federer had numerous chances to break, and couldn't. Del Potro gamely hung in there, though he wasn't playing as well as he did in the first set. In the tiebreaker, Federer totally went away after 2-2, making 5 unforced errors some on easy second serves. Worst tiebreak I've seen him play in a while. Del Potro looked as surprised as everyone else at a couple of those Federer errors.
But anyway, Del Potro played a good tournament, so congrats to him for winning his 1st ATP 500 of the year and breaking the 7 game losing streak vs. Federer!!
Ferrer and Dolgopolov are tied 1 set a piece and 3-3 in the decider.