ISTANBUL - Fifth-seeded Marcel Granollers had to fight hard in the second set to advance to the second round of the Istanbul Open on Tuesday, beating the 413rd-ranked wild card Cem Ilkel 6-1, 7-6 (9).

Sixth-seeded Jiri Vesely defeated Thiemo de Bakker 6-3, 7-5 in the first round, while seventh-seeded Teymuraz Gabashvili was upset 6-4, 6-2 by Damir Dzumhur.

Karen Khachanov made the second round by beating Aljaz Bedene 6-4, 6-7 (4), 6-4 and Chung Hyeon defeated Carlos Berlocq 6-2, 6-3.