MARSEILLE, France (AP) _ Max Mirnyi's claim to tennis fame was teaming with Serena Williams to win mixed doubles titles at Wimbledon and the U.S. Open in 1998. Now he's making a name for himself in singles.

The 6-foot-6 Mirnyi, from Belarus, reached the semifinals of the Marseille Open on Friday with a a 6-2, 6-3 victory over France's Julien Boutter. A day earlier, Mirnyi upset top-seeded Magnus Norman of Sweden.

Mirnyi has eight doubles titles, but he'll be looking for his first trip to a singles final when he plays France's Sebastien Grosjean on Saturday. Grosjean, the fourth seed, beat Karol Kucera of Slovakia 6-3, 6-2.

In the other quarterfinals, second-seeded Yevgeny Kafelnikov of Russia beat France's Cedric Pioline 7-5, 6-7 (5), 6-2, and sixth-seeded Roger Federer of Switzerland edged countryman Michel Kratochvil 6-4, 7-6 (4).