Serbia's Novak Djokovic talks with his coach Andy Murray, left, during a practice session ahead of the Australian Open tennis championship in Melbourne, Australia, Thursday, Jan. 9, 2025. (AP Photo/Mark Baker)

Serbia's Novak Djokovic is watched by his coach Andy Murray, right, during a practice session ahead of the Australian Open tennis championship in Melbourne, Australia, Thursday, Jan. 9, 2025. (AP Photo/Mark Baker)

Serbia's Novak Djokovic talks with his coach Andy Murray, left, during a practice session ahead of the Australian Open tennis championship in Melbourne, Australia, Thursday, Jan. 9, 2025. (AP Photo/Mark Baker)

Novak Djokovic of Serbia, left, and coach Andy Murray react during a training session ahead of the Australian Open tennis tournament at Melbourne Park in Melbourne, Tuesday, Jan. 7, 2025. (James Ross/AAP Image via AP)