DUBAI, United Arab Emirates — While top-seeded Novak Djokovic had a rest day when opponent Mikhail Youzhny became ill and withdrew from their quarterfinal on Thursday, Roger Federer had to play his way into their semifinal date at the Dubai Championships.
The fourth-seeded Federer, who has won this title five times, won his 40th match at the Dubai Championships with a 6-2, 6-2 win over Lukas Rosol of the Czech Republic.
Federer made a slow start, falling behind 2-0 but quickly rebounded by winning the next six games. In the second set, Federer broke serve in the third and fifth games.
Federer holds a slim 16-15 winning record over Djokovic. The Serbian, however, has beaten Federer in their last three matches, and nine of their last 12 meetings.
The other semifinal will feature third-seeded Tomas Berdych against seventh-seeded Philipp Kohlschreiber of Germany.
Playing in his fourth quarterfinal of the season, Kohlschreiber's 6-2, 6-3 win over Tunisian wild card Malik Jazirivictory was his 300th match-win on the ATP Tour.
Berdych holds a 7-1 winning record over Kohlschreiber.
Berdych, who was a finalist last year, fought past fifth-seeded Jo-Wilfried Tsonga 6-4, 6-3.
Berdych was on a 10-match winning streak, which includes his win at the Rotterdam tournament two weeks ago.