Alexander Zverev booked his place in the last four of the ATP Finals where he will face world number one Novak Djokovic after a 6-2 6-4 win over Hubert Hurkacz in Turin on Thursday.
The German fired 22 winners and closed out the match in 62 minutes, the fastest of the tournament so far. In the second Red Group match of the day, defending champion Daniil Medvedev struggled past Jannik Sinner 6-0 6-7(5) 7-6(8). The winner of Friday's match between Andrey Rublev and Casper Ruud will complete the semi-final line-up.
Zverev will face Green Group winner Djokovic on Saturday for the fifth time this year. The 24-year-old German has been beaten by Djokovic three times this year, including in the last four of the U.S. Open, but he defeated the Serbian in the semi-finals of the Tokyo Olympics.