World No 80 Philipp Petzschner set up an all-German final in Halle after a hard-fought semi-final win over second-seed Tomas Berdych on Saturday. Petzschner beat 2007 Halle champion Berdych 7-6 (9/7), 2-6, 6-3 and meets Philipp Kohlschreiber in the final.