HALLE, Germany (AP) -- Milos Raonic of Canada defeated Ze Zhang of China 6-1, 6-1 Wednesday to set up a possible quarterfinal with five-time Gerry Weber Open champion Roger Federer.

Raonic made short work of the 217th-ranked qualifier in the second round of the grass-court tournament, breaking Ze in the fourth game and taking just 20 minutes to win the first set, which he ended with his fifth ace.

The 21st-ranked Raonic had nine aces in the 52-minute win.

He will face 16-time Grand Slam winner Federer or Germany's Florian Mayer, who meet on Thursday.

Also, Mikhail Youzhny of Russia eliminated the fourth-seeded Alexandr Dolgopolov of Ukraine 6-4, 3-6, 6-3.

SI Apps
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide - from Peter King, Tom Verducci, Lee Jenkins, Seth Davis, and more - delivered straight to you, along with up-to-the-minute news and live scores.