Novak Djokovic wins Juan Martin del Potro title to claim fifth crown of 2011 . Straight sets win over Novak Djokovic extends his winning run to 27 ` But I know I need to do more and -0 . Juan Martin del Potro wins Estoril Open by beating Fernando Verdasco in final . Feliciano Lopez of Russia wins the WTA Tour title in Russia .
Novak Djokovic wins Juan Martin del Potro title to claim fifth crown of 2011 . Straight sets win over Novak Djokovic extends his winning run to 27 -0 . Juan Martin del Potro wins Estoril Open by beating Fernando Verdasco in final . Feliciano Lopez of Russia wins the WTA Tour title in Russia .