The 2005 U.S. Open champion, who retired in May 2007, returned to competitive tennis this week. In two World TeamTennis singles matches, Clijsters defeated Vania King and 14-year-old phenom Madison Keys. The 26-year-old Clijsters, who spent 19 weeks at No. 1, is set to play in WTA tournaments in Cincinnati and Toronto followed by the U.S. Open. If she's happy with the results, Clijsters could make a permanent return for the 2010 season.
Text: Bryan Armen Graham/SI.com
Photo: Robert Vos/AFP/Getty Images