Top-seeded Roger Federer cruised past Czech qualifier Jan Hajek 6-4, 6-3 to reach the German Tennis Championships quarterfinals on Thursday.
The four-time Hamburg champion is playing his first tournament since losing in the second round of Wimbledon.
Federer used only three of 13 break points and needed six match points to close out the match. He did it with his seventh ace, moments after producing a spectacular overhead smash winner with a flick of the wrist while stepping back.
The 17-time Grand Slam champion needed five set points to end the first set, finally earning it when Hajek netted a forehand.
Federer has dropped to No. 5, his lowest ranking in a decade. He will next play Florian Mayer of Germany, who beat 11th-seeded Feliciano Lopez of Spain 7-6 (1), 6-2.