World No. 1 men's tennis player Roger Federer's winning streak has ended at 25 matches after he lost in the quarterfinals of the Monte Carlo Masters tournament Friday.

Federer, the top seed, fell in three sets to unseeded French teenager Richard Gasquet 6-7, 6-2, 7-6. It was only the second loss for the Swiss player in 53 matches, a streak that stretches back to last year's U.S. Open.

Guillermo Coria
In other quarterfinal action, two-time winner Juan Carlos Ferrero of Spain and defending champion Guillermo Coria advanced to a semifinal showdown.

Play was delayed Friday for the funeral of Monaco's Prince Rainier, but then Ferrero, the 2002 and 2003 champion, took little time to dispatch Filippo Volandri of Italy in straight sets, 6-2, 6-3.

Meanwhile, Coria had to overcome a first-set loss to beat Spain's David Ferrer in three sets 3-6, 6-4, 6-3. The Argentine has met Ferrero three times before, with the Spaniard holding a 2-1 advantage. Two years ago, Ferrero beat Coria to win this tournament.

The clay-court event is one of several that players are using to prepare for the second major tournament of the year, the French Open, which starts May 23 in Paris.

Some information for this report provided by AP and AFP.