MELBOURNE, VIC - JANUARY 31: Alexander Zverev of Germany returns the ball during the semifinals of the 2020 Australian Open on January 31 2020, at Melbourne Park in Melbourne, Australia. (Photo by Jason Heidrich/Icon Sportswire via Getty Images)
MELBOURNE, VIC - JANUARY 31: Alexander Zverev of Germany returns the ball during the semifinals of the 2020 Australian Open on January 31 2020, at Melbourne Park in Melbourne, Australia. (Photo by Jason Heidrich/Icon Sportswire via Getty Images)