DUBAI: Roger Federer began his quest for his eighth Dubai Duty Free Tennis Champions title by beating Philipp Kohlschreiber 6-4 3-6 6-1 on Monday. Victory this week would also bring him his 100th career title, taking him tantalisingly close to the record 109 titles held by Jimmy Connors. Playing his first match since losing to Stefanos Tsitsipas in the fourth round of the Australian Open, Federer …