Roger Federer opened his Gerry Weber Open title defense by seeing off Aljaz Bedene of Slovenia 6-3, 6-4 on Tuesday.
The world No. 1 broke the No. 72nd-ranked Bedene at the first attempt and again for 5-4 in the second set to wrap up the win.
Fresh from winning his 18th grass-court title in Stuttgart on Sunday, Federer dropped just four points on his serve and forced seven break opportunities, taking two.
Federer made his comeback in Stuttgart after skipping the entire clay-court season for the second year in a row, and again he looked sharp as he extended his grass-court winning streak to 17 matches, including his titles at Halle and Wimbledon last year.