Stan Wawrinka Flies Into US Open Crowd Going For Ball

The No.3 seed Stan Wawrinka was clearly  going 110% during his US Open 4th round match against Tommy Robredo. Wawrinka, who made it to the US Open semi-finals last year, flew into the crowd going for a ball during the third set. Wawrinka would briefly appear injured but after about a two-minute break returned to the match.