ATP Finals
London, England
Round Robin results for November 15:
(1) Rafael Nadal defeats (6) Stefanos Tsitsipas 67(4) 64 75 Group record 2-1.
(7) Alexander Zverev defeats (4) Daniil Medvedev 64 76(4) Group record 2-1.
Zverev win the the group as he defeated Nadal in their head-to-head.
