Third seed Alexander Zverev made his Nitto ATP Finals debut as he met fifth seed Marin Cilic in the Boris Becker Group - watch the full match replay here.
Alexander Zverev v Marin Cilic
Replay
London
2017RRRR
Third seed Alexander Zverev made his Nitto ATP Finals debut as he met fifth seed Marin Cilic in the Boris Becker Group - watch the full match replay here.
