Novak Djokovic's bid for the record 11th Australian Open took a major blow as the Serbian great retired with injury following a first set of the semifinal against Alexander Zverev on Friday.
Defending champions Germany kicked off their United Cup campaign with a win as Alexander Zverev produced a sharp opening performance on Sunday to steer Germany to victory over Brazil in Perth, capitalising on teammate Laura Siegemund's crucial upset win earlier in the day.
German star Alexander Zverev overcame Karen Khachanov in straight sets at the Cincinnati Open here on Thursday, becoming the first player to earn 50 tour-level wins this season.
Alexander Zverev took a nasty tumble midway through the second set of his match against Cameron Norrie but recovered to defeat the home hope in straight sets while Ben Shelton survived his third five-setter of the fortnight to reach the fourth round at The Wimbledon on Saturday.
Alexander Zverev led a strong show at Wimbledon on Tuesday, though World No. 6 Andrey Rublev became the highest-ranked player to exit the tournament so far.
The world No. 5 produced high-quality tennis all week to back up his Olympic singles gold medal in Tokyo and capture his fourth tour-level trophy of the season. Zverev also became the first German champion in Cincinnati since Boris Becker in 1985.
The 24-year-old, who has yet to win a Grand Slam title, was in stunning form in the one-hour and 19-minute express contest to become the first German man to win a single Olympic gold.
World No. 1 Novak Djokovic of Serbia, who beat Federer in the 2019 Wimbledon final, might have to overcome Greece's Stefanos Tsitsipas or two-time champion Andy Murray, in the semi-finals.
Alexander Zverev, who will be appearing in his maiden final in the Paris Masters, will face third seed Medvedev at the Accor Arena on Sunday.
Austria's Dominic Thiem registered an incredible comeback win as he defeated Zverev 2-6, 4-6, 6-4, 6-3, 7-6 and won his first Grand Slam on Sunday.
