Roger Federer's making a habit of this. The 5-time US Open champ performed another incredible tweener shot during his 6-1, 6-4, 6-2 first round win over Argentine Brian Dabul last night. He was about 10 feet behind the baseline and hit the screaming tweener past his stunned opponent.
Last year Fed hit a tweener passing shot by Novak Djokovic to reach match point during their semifinal bout. If you'd like to learn how to hit it, click here.
Huh, come to think it, after the Gillette mystery it wouldn't surprise me if the USTA and the Swiss planned this out. C'mon, you know it could happen.