Alexander Zverev needed three sets to reach the quarter-final of the BMW Open in Munich, but Hyeon Chung dropped only two games.
Top seed Zverev lost the opening set tie-breaker against fellow German Yannick Hanfmann before bouncing back to secure a 6-7 (12-14), 6-4, 6-2 victory in a match that lasted more than two hours.
It was a tight first set with no breaks of serve, but Hanfmann held his nerve in the tie-breaker.
Zverev’s class eventually told in the second and third sets.
“I am always happy to get a win like that,” Zverev said after the match. “Obviously [Hanfmann] played one of the best matches of his life today, so I wish him all the best and I hope he is going to continue playing like this in the next few weeks.”
Australian Open semi-finalist Chung had no such problems as he required less than an hour to beat local hero Matthias Bachinger 6-1, 6-1 and secure his first win of the season on clay.
Welcome to the clay season, @HyeonChung ??
— Tennis TV (@TennisTV) May 2, 2018
The South Korean will face Martin Klizan next after the Slovak beat Mirza Basic 4-6, 6-3, 7-5.
Germany’s Jan-Lennard Struff also advanced as he came out on top in his all-German clash with Yannick Maden, winning 6-3, 3-6, 6-3.
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