Australia are set to be without Josh Hazlewood for the Boxing Day Test at the MCG after sitting out of training on Friday as he continues to recover from a side strain.

The 30-year-old fast bowler, who has taken 215 wickets in 56 Test matches, missed the second Ashes Test after sustaining the injury during the series opener in Brisbane.

Hazlewood did not partake in Australia's nets session on Friday, instead watching on as Jhye Richardson and Michael Neser jousted for his spot for the third Test.

Australian allrounder Cameron Green said that Hazlewood would likely be ready for the fourth Ashes Test in Sydney starting on January 5.

“He's going really well,” Green told reporters about Hazlewood. “He was doing his run-throughs today and he’s looking really good. I haven't spoken to the guys for this game, but definitely lock him in for Sydney.”

Neser looms as the bowler likely to drop out for returning captain Pat Cummins after taking one wicket in each innings in Adelaide, with Richardson likely to hold his spot after a second-innings five-wicket haul.

"I spoke to him today and he is good to go," Green said about his state teammate Richardson. "He was so pumped after how he went in that second innings, as you would be, and he’s ready to go again."