Richmond star Dustin Martin is taking time away from the AFL club and is in doubt for its match against GWS on Sunday.

Martin was a notable absentee from Thursday's run at Punt Rd and has not been at the club since Monday's match review, missing their Tuesday training session.

Coach Damien Hardwick said Martin was taking time away from the club because of personal issues.

Hardwick did not go into any details of Martin's situation, but his father Shane died last December in New Zealand.

"He's just taking some personal time at the moment," Hardwick said before training.

"He's dealing with a couple of personal issues and whether he's available to play this week, we're unsure at this stage.

"So we won't close the door, but we just want to make sure that Dustin's OK.

"We'll give him his time.

"He's so important to the fabric of our footy club, we just want to make sure he's OK and he's getting what he needs."

The 2017 Brownlow Medallist and three-time Norm Smith Medallist is Richmond's most important player and the 30-year-old is among the AFL's top stars.

Richmond is coming off a first-round loss to Carlton and has also lost fellow frontline on-baller Dion Prestia to a hamstring injury.

Key forward Jack Riewoldt is sidelined with a thumb fracture that needed surgery.

AAP