Dominic Thiem beats Pablo Carreno Busta 2-1 in ATP World Tour Finals

Dominic Thiem of Austria serves during the singles round-robin match against Pablo Carreno Busta of Spain during the Nitto ATP World Tour Finals at O2 Arena in London, Britain, on Nov. 15, 2017. Dominic Thiem won 2-1. (Xinhua/Tang Shi)