The Dutchman had ended his five-match losing streak against Zverev at Indian Wells last month, and looked set make it back-to-back wins when he broke early in the second set on the way to a 5-4 lead.

MUNICH -- American Ben Shelton advanced to his second clay-court semifinals by beating Luciano Darderi, while top-seeded Alexander Zverev rallied to beat Tallon Griekspoor at the BMW Open on Friday.

Alexander Zverev’s Bavarian International victory over Tallon Griekspoor was interrupted by a heckler referencing domestic abuse allegations made against the German. Leading 6-5 in the second ...

Alexander Zverev was heckled by a spectator during Friday's Munich Open quarterfinal, and the top seed asked the chair umpire to eject the individual, who alluded to domestic abuse allegations ...

Alexander Zverev was heckled by a spectator during Friday's Munich Open quarter-final and the top seed asked the chair umpire to eject the individual who alluded to domestic abuse allegations ...

Top-seeded Alexander Zverev rallied to beat Tallon Griekspoor 6-7 (6), 7-6 (3), 6-4. The third-ranked Zverev will face Fabian Marozsan or Zizou Bergs in the semifinals.