Top-seeded Janko Tipsarevic of Serbia defeated Grega Zemlja of Slovenia 6-4, 6-2 to reach the quarter-finals of the BMW Open on Thursday.
Also in the second round, third-seeded Tommy Haas of Germany overcame Latvia’s Ernests Gulbis 6-4, 6-7 (3), 6-2 in match lasting more than 2 hours, 10 minutes to set up a last-eight clash with countryman Florian Mayer. The sixth-seeded Mayer beat Australia’s Marinko Matosevic 2-6, 6-4, 6-2.
The 35-year-old Haas, a finalist in 2000, is bidding to win the title for the first time on his 10th appearance.
Daniel Brands of Germany will play Gael Monfils of France later Thursday, with the winner to face Tipsarevic in the quarterfinals.
