Top seed Roger Federer reached the Rotterdam Open semi-finals on Friday with a 7-5, 7-6 (7/2) win over Jarkko Nieminen, his 13th win in 13 matches against the Finn. The Swiss star will next face unseeded Russian Nikolay Davydenko, who shocked fifth seed Richard Gasquet of France 7-5, 6-3, for a place in his first final of the season. Gasquet had his chances through a 5-2 lead in the second set but double-faulted to 5-all allowing Davydenko win through in 97 minutes with five breaks of serve. Nieminen, who won the Sydney title in January but was hampered at the Australian Open by an abdominal muscle injury, pushed 16-time Grand Slam winner Federer hard.
