Five-times champion Roger Federer brushed aside Lukas Rosol to set up a semi-final clash with Novak Djokovic at the Dubai tennis Championship.
Federer beat the Czech 6-2 6-2 while holder Djokovic enjoyed a walkover when quarter-final opponent Mikhail Youzhny withdrew through illness.
Third seed Tomas Berdych, who finished runner-up to Djokovic in 2013, faces seventh seed Philipp Kohlschreiber in the other semi-final.
Berdych overcame fifth seed Jo-Wilfried Tsonga 6-4 6-3 while Kohlschreiber beat Tunisian wildcard Malek Jaziri 6-2 6-3.
Federer holds a 16-15 lead in head-to-head matches with Djokovic but the Serb has won their last three meetings, including their most recent match at the ATP World Tour Finals in London in November.