Del Potro wins first title since 2009 US Open at Delray Beach International Tennis Championships
In doubles, Americans Scott Lipsky and Rajeev Ram won their second straight ATP World Tour title beating German-Austrian pairing of Christopher Kas and Alexander Peya 4-6, 6-4, 10-3 at Delray Beach International Tennis Championships.
Zvonareva beats No. 1 Wozniacki in Qatar Ladies Open
In doubles, Kveta Peschke and Katarina Srebotnik won their second WTA doubles title of the year at the Qatar Ladies Open , beating Liezel Huber and Nadia Petrova in the final, 75 67(2) 108.
Djokovic defeats Federer to win The Dubai Tennis Championships title
Djokovic extended his unbeaten streak in 2011 to 12 matches with his 20th title.
In doubles, Sergiy Stakhovsky and Mikhail Youzhny defeated Jeremy Chardy and Feliciano Lopez 4-6, 6-3, 10-3 in the final of the ATP World Tour 500
pics by AP/Getty/ATP