What was impressive was how Tipsarevic never really let go and constantly troubled Roddick by returning even his most potent serves. The US Open 2010 is now truly open. With this sort of form, I wouldnt doubt Tipsarevic's ability to tame another giant. As I always say, we are living in privileged times. Anyone who rises to the occasion to beat a champion without any support from the crowd whatsoever deserves a pat on the back.