Roger Federer outlasted Philipp Kohlschreiber in the first round of the Dubai Duty Free Tennis Championships on Monday.
The 20-time Grand Slam champion cruised through the deciding set to win 6-4 3-6 6-1 against the 35-year-old German in one hour and 35 minutes.
Federer is aiming for the eighth title Dubai Duty Free Tennis Championships title, and also pocket his 100th title on the tour in the emirate.
Meanwhile, Russian fourth seed Karen Khachanov lost 6-4 6-1 to Georgian world number 19 Nikoloz Basilashvili, while Canadian seventh seed Milos Raonic was beaten 6-4 5-7 6-4 by Germany's Jan-Lennard Struff.
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