Watch this semi-final showdown live from the O2 Arena as six-time champion Roger Federer takes on third seed Alexander Zverev at the Nitto ATP Finals. Who will reach the final?
Roger Federer v Alexander Zverev (No commentary)
Replay
London
2018SFSF
Watch this semi-final showdown live from the O2 Arena as six-time champion Roger Federer takes on third seed Alexander Zverev at the Nitto ATP Finals. Who will reach the final?
