Roger Federer defeats Alexander Zverev 7-6(6) 5-7 6-1 (Round…

Roger Federer defeats Alexander Zverev 7-6(6) 5-7 6-1 (Round Robin 2) at Nitto ATP World Tour Finals, 2017.

For the 14th time in 15 Nitto ATP World Tour Finals appearances, Roger Federer is into the semi-finals. 🎉