Many, like Mackenzie McDonald, have been provided with bikes and weights, and are making do with mattress walls. (Getty)

While many players are posting photos from the beautiful blue practice courts of Melbourne Park, a large chunk of the Australian Open field is still trapped in their hotel rooms. Tennis Channel caught up with a few of them to see how they're staying busy "Locked Down Under".

1

Tennys Sandgren gives explanation for flight drama: 

The world No. 50 had COVID-19 in November yet tested positive just before flying to Melbourne. He needed special authorization from health officials in Australia to be allowed to travel and received it just in time.

2

Vasek Pospisil hits the books: 

The Canadian was on one of the flights carrying COVID-19 positive passengers, but he's staying upbeat and trying to do as much fitness and reading as he can.

3

Marcos Giron finds comfort in Netflix: 

The 27-year-old American is struggling with accepting his fate of two weeks in his room. He'll have to find solace in binging "Peaky Blinders".

4

Pros battle with mattresses : 

Mattresses have been turned into hitting walls in almost every player room, and Mackenzie McDonald took things up a notch by serving shirtless. Photogs stationed outside the hotel windows captured him lifting weights (shirtless) with a smile on his face.

Expect to see plenty more from the players Down Under as they navigate another 10 days of quarantine.