Tennis: Thiem beats second seed Djokovic at ATP Finals

World number 5 Dominic Thiem is on a roll. After beating Roger Federer in the ATP Finals opener, Thiem once again produced a superlative performance against World number two Novak Djokovic. Thiem overcame Novak Djokovic 6(5)-7, 6-3, 7-6(5) to reach pave his way into the semis of the ATP Finals.