Berdych advances, Nieminen upset at Halle

HALLE, Germany -- Tomas Berdych served nine aces in a 6-3, 7-5 defeat of Thomas Johansson on Monday and advanced to the second round of the Gerry Weber Open.

The 12th-ranked Berdych's third break of Johansson's serve gave him a 6-5 lead in the second set, and he wrapped up the match in 1 hour, 17 minutes at the grass-court event, a key tuneup for Wimbledon.

Berdych took the crown last year with Roger Federer absent, following four straight years in which the world's No. 1 player had won the event en route to his Wimbledon titles. Two years ago, Berdych was defeated in the final by Federer.

Mischa Zverev, who is ranked No. 97, pulled off the first upset of the tournament with a 2-6, 6-4, 6-2 victory over seventh-seeded Jarkko Nieminen.

Federer plays his first match of the tournament Wednesday against 89th-ranked Michael Berrer and will be seeking to extend his record 54-match winning streak on grass that dates to 2002.