This match in our opinion, has shifted momentum quite firmly. Federer's got the upper hand and how and he's on top of the scorecard. But it's looking like a hard-fought win and then some for the victor!
Goodness! This is turning out to be quite the match. We've never seen quite as many breaks and back-and-forth exchanges there, and just when it looked like Federer was about to double fault, he pulls out an ace.
What a rally at the net! And by at the net, I literally mean right there. One might well feel like a dog watching the tennis ball go end-to-end. Lightning fast, and Federer sends another beautifully placed backhand just wide of Del Potro.