MELBOURNE, AUSTRALIA - JANUARY 17: Dominic Thiem of Austria practices ahead of the 2020 Australian Open at Melbourne Park on January 17, 2020 in Melbourne, Australia. (Photo by Daniel Pockett/Getty Images)
MELBOURNE, AUSTRALIA - JANUARY 17: Dominic Thiem of Austria practices ahead of the 2020 Australian Open at Melbourne Park on January 17, 2020 in Melbourne, Australia. (Photo by Daniel Pockett/Getty Images)