Tennis

Federer stays as motivated as ever at U.S. Open

Published Sep. 8, 2009 11:17 p.m. ET

foxsports

It can't be easy to be Roger Federer some days.

Not because he occasionally has to help his wife Mirka change the diapers of their new twin girls, but because on many days when he goes to work, he has to confront an opponent he's beaten time and time again.

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