Madrid – World number one Novak Djokovic followed number two Rafa Nadal out of the Madrid Open when he was upset by Serbian compatriot Janko Tipsarevic 7-6 6-3 in the quarter-finals on the heavily criticised blue clay courts on Friday.

The top-ranked pair have complained bitterly about the slippery nature of the courts at the Masters event and Djokovic again looked ill at ease as his bid to retain the title he beat Nadal to win in 2011 ended with a whimper.

Nadal was beaten by fellow Spaniard Fernando Verdasco in the third round on Thursday and both he and Djokovic have threatened not to return next year unless the traditional red dirt courts are reinstated.

Tipsarevic, seeded seventh, squandered three match points on the Djokovic serve when leading 5-2 in the second set but made no mistake on his next service game to set up a semi-final with third seed Roger Federer or fifth-seeded Spaniard David Ferrer.– Reuters