A thigh injury has forced Serena Williams to withdraw from the Madrid Open . The world No.1 hopes to be fit for Madrid Spaniard Open all week . Serena Williams cruises into men 's semifinal in Rome .
A thigh injury has forced Serena Williams to withdraw from the Madrid Open . The world No.1 hopes to be fit for Rome Italian Open next weekend . Rafael Nadal cruises into men 's semifinal in Madrid .