ROTTERDAM, Netherlands (AP)—Robin Soderling secured a quarterfinal berth, while Nikolay Davydenko and Gael Monfils won their opening round matches at the ABN Amro indoor hardcourt tournament on Wednesday.
Michael Berrer of Germany fought a marathon 34-point tiebreaker in his first-round victory over Frenchman Arnaud Clement, winning 7-6 (16), 4-6, 6-4.
Soderling, seeded third, came back from a 0-4 deficit in the first set tiebreaker against Dutch qualifier Igor Sijsling to win 7-6 (6), 6-2. The win put the Swede back on track after two first-round losses this year at the Australian Open and Chennai.
Second seed Davydenko broke Spain's Feliciano Lopez twice at the start of the second set to win 6-4, 6-2 and stay on course to meet top-seeded Novak Djokovic.
Frenchman Monfils, seeded fourth, fired 19 aces against Belgium's Olivier Rochus to win 4-6, 6-1, 6-2.