Ferrer upsets Nadal at Monte Carlo Masters; Djokovic, Federer and Wawrinka reach semifinals

Monte-Carlo Rolex Masters, Monte-Carlo, Monaco

Quarterfinal results:
(2) Novak Djokovic defeats Guillermo Garcia-Lopez 4-6, 6-3, 6-1
(6) David Ferrer defeats (1) Rafael Nadal 7-6(1), 6-4
(3) Stanislas Wawrinka defeats (8) Milos Raonic 7-6(5), 6-2
(4) Roger Federer defeats (9) Jo-Wilfried Tsonga 2-6, 7-6(6), 6-1