Janko served at 31% in the second set yet was holding mostly comfortably after being broken to start it. Usually, that's cause for disaster vs Nalbandian but not today. Obviously, that would mean Janko was winning the rallies. Disappointing for David not to take advantage of that but great return numbers for Janko.
No-one ever gives Tipsarevic credit on this forum and few here gave him a chance to win this. I don't like or support him but good revenge victory for the Serb.