Tommy Haas ambushed five-time winner Roger Federer 7-6(5), 6-4 to win the Halle grasscourt title a second time in front of a German home crowd on Sunday.
Haas, 34, impressed with big returns and achieved the deciding break for 5-4 in the second set, with a passing shot, en route to victory in 1 hour 35 minutes.
At London, Croatia's Maric Cilic took the Queen's Club title in controversial fashion as Argentina's David Nalbandian was disqualified in the second set of the final for kicking an advertising board into a line judge.
Nalbandian, who won the first set 7-6(3), had just lost his serve to fall 4-3 down in the second set when he reacted with a frustrated kick at the board, which was just in front of line judge Andrew McDougall.
McDougall rolled up his trouser leg to reveal a bloody gash and he appeared to remonstrate with Nalbandian.
Play came to a halt and after a delay of several minutes, ATP supervisor Tom Barnes came onto the court to speak to umpire Fergus Murphy and Nalbandian. It soon emerged that the 30-year-old's petulant behaviour had been punished with disqualification "due to unsportsmanike behaviour".
At Halle (ATP Gerry Weber Open): Final: Tommy Haas bt Roger Federer 7-6(5), 6-4.
At London (ATP AEGON Championships): Final: Marin Cilic bt David Nalbandian 6-7(3), 4-3 (Nalbandian defaulted for unsportsmanlike conduct).
Semifinals: David Nalbandian bt Grigor Dimitrov 6-4, 6-4.
At Birmingham (WTA AEGON Classic): Semifinals: Melanie Oudin bt Ekaterina Makarova 6-4, 3-6, 6-2.
Quarterfinals: Melanie Oudin bt Irina Falconi 6-4, 5-7, 7-5; Jelena Jankovic bt Misaki Doi 6-3, 6-4. On Saturday: Zheng Jie bt Roberta Vinci 6-3, 5-7, 6-4; Ekaterina Makarova bt Su-Wei Hsieh 3-6, 6-3, 6-3.
Keywords: Halle grasscourt title