Alexander Zverev has not been himself on the court since he lost to Jannik Sinner in the Australian Open final. The 27-year-old has publicly questioned his confidence and mindset as he struggled throughout Spring.

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 against the German.

Alexander Zverev overcame Tallon Griekspoor in a three-set battle to reach his first Munich Open semi-final in seven years. Ben Shelton also advanced,