Madrid Open: Federer in Quarters, Nadal gets walkover

World number 1 Rafael Nadal got an easy walkover against Philipp Kohlschreiber was forced out of left leg injury. While No.2 Roger Federer scored 6-2 and 6-4 win over James Blake and moved to quarters of the Madrid open tennis tournament.Also in last eight were Andy Murry, won against Tommy Robredo 7-5, 6-1, and Novak Djokovic, who advanced with a 6-4, 6-4 over Andreas Seppi. And sixth seeded Andy Roddick also got walkover against Nikolay Davydenko withdrew because of left leg injury. Fernando Verdasco defeated Juan Monaco of Argentina 7-5, 6-2. Ivan Ljubicic won against Gilles Simon 3-6, 6-4, 6-3. Weather and injury is dominating Madrid Open.“A lot of tennis in the body is sometimes not the best thing but unfortunately in tennis, it happens that we have injuries,” said the Swiss, who next faces Roddick.