BELGRADE, Serbia (AP) — Top-ranked Novak Djokovic dug deep for the second match in a row to reach the semifinals of the Serbia Open with a 4-6, 6-3, 6-3 win over Miomir Kecmanovic on Thursday.
Kecmanovic won the opening set without facing a break point, but Djokovic finally showed signs of getting back to his best in the second and then won the final four games of the decider in what was just his sixth match of the year.
The 20-time Grand Slam champion stretched his winning streak against compatriots to 10 matches going back to a loss to Janko Tipsarevic in Madrid in 2012.
Djokovic next plays third-seeded Karen Khachanov, who defeated Brazilian qualifier Thiago Monteiro 7-5, 6-4.
Djokovic also endured a tough game Wednesday when he rallied from a set down to beat compatriot Laslo Djere 2-6, 7-6 (6), 7-6 (4).