VIDEO: Federer’s Amazing Tweener At US Open

Roger Federer scored a straight set victory in his opening round match of 2014 U.S. Open on Tuesday, defeating Marinko Matosevic 6-3, 6-4 and 7-6.

Federer's brilliant performance included some wonderful returns, including this 'tweener' that his opponent apparently gave up on. It even 'wowed' Michael Jordan, who was in attendance.

You'll see in the video, Matosevic seems to think he's won the point and turns his back to Federer, who retreats and sends it back...between his legs, no less.