Roger Federer and Alexander Zverev will face each other for the sixth time in career on Saturday in the ATP Finals semifinals. The Swiss player leads head to head meetings 3-2 having won at last year's ATP Finals round robin stage, 2017 Halle final and 2016 Rome second round.
Federer also defeated the German at this year's Hopman Cup in three sets, but that match does not count as it is not an ATP tournament. Zverev defeated Federer at 2016 Halle semifinals and 2017 Montreal final. In the night session Novak Djokovic will start as a favorite against Kevin Anderson.
Out of eight matches, the South African defeated the Serb only at 2008 Miami. Djokovic won against Anderson always in straight sets excluding the 2015 Wimbledon fourth round when Kevin was leading two sets to love. Both Federer and Djokovic are seeking their sixth ATP Finals title.
'It's obviously great getting to the semifinals', said Zverev. 'But the tournament isn't over. I am in the semifinals. There's only good opponents left. There's only the best in the world. I'm playing Roger tomorrow, which is going to be a very difficult but hopefully very nice match.
We'll see how far I can go. As I said, I think this question is more for after the tournament is done. I don't want to really be thinking about I'm in the semifinals now, I'm satisfied. That's not how I work.' ALSO READ: Rafael Nadal: Worse players than David Ferrer won a Grand Slam title