Lleyton Hewitt, of Australia, returns a shot to Peter Polansky, of Canada, at the U.S. Men's Clay Court Championship tennis tournament Tuesday, April 8, 2014, in Houston. Hewitt won 6-4, 3-6, 6-4. (AP Photo/Houston Chronicle, Thomas B. Shea)

US Clay Court Championship Tennis

Lleyton Hewitt, of Australia, returns a shot to Peter Polansky, of Canada, at the U.S. Men's Clay Court Championship tennis tournament Tuesday, April 8, 2014, in Houston. Hewitt won 6-4, 3-6, 6-4. (AP Photo/Houston Chronicle, Thomas B. Shea)

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