Roger Federer Novak Djokovic booked their place in the semi-finals of the BNP Paribas Open in Indian Wells after straight-forward quarter-final wins for both players.

Three-time champion Roger Federer is through to the third round of the BNP Paribas Open at Indian Wells after defeating Igor Andreev 7-5, 7-6(4) in his second-round opening match.

Fourth seed Andy Murray of Britain yesterday struggled to explain his surprise defeat in the US Open third round by Stanislas Wawrinka of Switzerland.