ESTORIL: World No. 1 Roger Federer crashed to a shock 6-2, 7-6(5) semifinal loss to Spain's Albert Montanes on a heavy court slowed by a day of rain at the Estoril Open.

Montanes triumphed to move to within one victory of repeating his 2009 title with the upset in a match which began with more than two hours of delay after downpours drenched the Estadio Nacionale.

Meanwhile, second-seeded Russian Mikhail Youzhny reached his third successive Munich final, defeating Germany's Philipp Petzschner 7-5, 7-6(5).

The Russian will be hoping to be third time lucky in the final against Croatia's Marin Cilic, having finished runner-up on his previous two visits. He lost to Philipp Kohlschreiber in 2007 and went down to Tomas Berdych last year.

In the other semifinal, Cilic recovered from losing the first set for a 3-6, 6-2, 6-3 win over 2006 Australian Open finalist Marcos Baghdatis. The Cypriot hit 10 aces and forced nine break points, but Cilic defended eight of them.

In a superb start to the season, the Croatian has already successfully defended his ATP crowns in Chennai and Zagreb and reached the semifinal at the Australian Open, where he lost to Andy Murray.

Martinez-Sanchez wins

Unfancied Maria Martinez-Sanchez produced a stunning display to upset seventh seed Jelena Jankovic 7-6(5), 7-5 in the final of the Rome Open.

The victory was the biggest of the Spaniard's career, and only her third WTA title, as she wowed the packed stands at the Foro Italico in a two hour 20 minute thriller.

At Belgrade, top-seeded Novak Djokovic retired midway through his quarterfinal against Filip Krajinovic.

The results: At Munich (BMW Open): Semifinals: Mikhail Youzhny bt Philipp Petzschner 7-5, 7-6(5); Marin Cilic bt Marcos Baghdatis 3-6, 6-2, 6-3; Quarterfinals: Cilic bt Nicolas Almagro 6-4, 6-7(2), 6-2.

At Rome (Italian International): Final: Maria Martinez-Sanchez bt Jelena Jankovic 7-6(5), 7-5; Semifinals: Martinez-Sanchez bt Ana Ivanovic 6-4, 6-2.

At Belgrade (Serbian Open): Semifinals: John Isner bt Stanislas Wawrinka 7-5, 7-5; Quarterfinals: Wawrinka bt Viktor Troicki 7-5, 6-7(3), 7-6(6); Sam Querrey bt Igor Andreev 6-3, 2-6, 6-4; Filip Krajinovic bt Novak Djokovic 6-4, retd.

At Estoril (Estoril Open): Semifinals: Albert Montanes bt Roger Federer 6-2, 7-6(5) . — Agencies

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