Novak Djokovic is one of the lucky few in Adelaide already getting practice hours. (Getty)

The 2021 season is already shaping up to be one of unique circumstances, with 72 players needing to complete a two-week full quarantine in their Australia hotel rooms, and the remainder of the competitors allowed out of their rooms a maximum of five hours a day for practice.   

"I'm worried, I already am the type of guy that likes to get out and likes to be outside," said Reilly Opelka in the weeks leading up to Melbourne. "My biggest issue is just mentally how I'm gonna be. It kind of wears me down when I feel trapped and I feel like my whole life's revolving around tennis." 

Despite the challenge, players are finding ways to make the best of their time in isolation—or at least ways to approach it with a sense of fun. To pass the time, they've made entertaining videos of their quarantine activities, such as simulated tennis from... 

Belinda Bencic:

Daria Kasatkina: 

@daryakasatkina

Isolation tennis with @nastia_pav ???? ##tennis ##Australia @ausopen ##gettingready

♬ Eye of the Tiger - From "Rocky" - Rock Guitar Version Originally Performed by Survivor - Msmd

Aryna Sabalenka: 

Anastasia Potapova:

Yulia Putintseva:

Ons Jabuer: 

Then there's surfing with Pablo Cuevas:

In-room work out sessions from Heather Watson:

And Iga Swiatek:

And nutrition insight from Frances Tiafoe:

At some point, leaving the room will be come a reality and Elina Svitolina is ready for it:

@elinasvitolina

When it’s finally time ???? for practice! ##fyp ##tennis ##life ##4u

♬ Knock Knock (Guess Who's Coming To Dinner) - Mr Eazi & Major Lazer

The ATP and WTA Australian Open lead-up events are slated to begin on Jan. 31.