Novak Djokovic succumbed to the extraordinary Dominic Thiem at the ATP Finals Tuesday as the Austrian became the first man to qualify for the semifinals in London. Despite winning the first set tie-break, Djokovic was second best to Thiem, who found his form to comeback 6-7 (5-7) 6-3 7-6 (7-5) in a thrilling meeting. The 26-year-old Thiem is competing at his fourth consecutive ATP Finals but had never defeated Djokovic on the hard court before. “This was really one of these special matches, what I’ve practiced all my life for, all my childhood for,” said Thiem. “Really epic one in an amazing atmosphere, […]