In his first-round matchup last night at the US Open, Roger Federer (for the second year in a row) made an incredible, between-the-legs shot against Argentina's Brian Dabul that sent the sell-out crowd at Arthur Ashe Stadium to its feet.

<img src="http://feedads.g.doubleclick.net/~at/iWxe-8Y8Fsz7mhHMZSJJf31_Hms/1/di"