Halle - Unseeded German Philipp Kohlschreiber upset third-seeded Gael Monfils of France in straight sets on Saturday to reach the final of the Gerry Weber Open.
The 49th-ranked Kohlschreiber returned to the Halle final for the first time since losing to Roger Federer in 2008 by cruising past Monfils 6-3, 6-3 in 1 hour 17 minutes.
Monfils, ranked a career-high No. 8 coming into the tournament, had not dropped a single set at the Wimbledon warmup event before running into an in-form Kohlschreiber.
In Sunday's final, Kohlschreiber will take on either 2007 Gerry Weber champion Tomas Berdych or fellow unseeded German Philipp Petzschner, who were playing the second semi later Saturday.