On the WTA Tour , world number one Caroline Wozniacki began her campaign at the Madrid Masters Sunday with a 6-2 6-3 win over Japan 's Ayumi Morita . Novak Djokovic wins Serbia Open title to claim fifth crown of 2011 . Straight sets win over Feliciano Lopez extends his winning run to 27-0 . Djokovic's victory means he has won the last five titles at Roland Garros and is now just one behind Roger Federer for fourth place on the all-time list. Nikolay Davydenko of Russia wins ATP title in Munich .
Novak Djokovic wins Serbia Open title to claim fifth crown of 2011 . Straight sets win over Feliciano Lopez extends his winning run to 27-0 . Djokovic's victory means he has won the last five titles at Roland Garros and is now just one behind Roger Federer for fourth place on the all-time list. Nikolay Davydenko of Russia wins ATP title in Munich .