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Video: Andy Roddick explains how to pull off the tweener

Busted Racquet

Lacoste has partnered with Yahoo! Sports to provide exclusive content on the 2010 U.S. Open.

Roger Federer's miraculous between-the-legs shot on Monday night has a "don't try this at home" quality that can't be overstated. Successfully pulling off the tweener without self-inflicting minor injury is something best left to the professionals.

However, if you have a little daredevil in you, Andy Roddick is happy to show you how to attempt the tennis trick shot. Tip No. 1: Have your kids first.

Luckily for Federer, he and his wife Mirka already have twins.

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