Kurt Tippett's immediate playing future is set to become a test case for the AFL's treatment of concussion injuries.
The Crows have rested Tippett from Saturday's game against the Cats in Geelong after the Adelaide forward suffered his third concussion in five weeks in the round-17 clash with West Coast on July 21.
Adelaide have been working closely with AFL Medical Officers' Association boss Hugh Seward and AFL medical director Peter Harcourt.
Tippett is also likely to be rested for a second match.
However Nine's The Footy Show said on Thursday night that senior medical figures around Melbourne were expected to advise the AFL that Tippett should not play again this season.
Tippett on Thursday underwent a series of scans which will be analysed in the coming days, the program said.
The playing future of Queenslander Tippett is further complicated by his out-of-contract status, with Brisbane and Gold Coast expected to show interest in the 202cm forward from Southport.
Geelong skipper Joel Selwood says concussion is a major issue in the game.
"Across the whole league, all the players are getting their mind around that it is a big issue and there are things that come with it," Selwood told The Footy Show.
"We don't see the players push off the trainers any more. You don't see players try to stumble to their feet.
"The umpires are giving us enough time to let the medicos come on and check us out and see how we're going.
"It's a huge issue and the AFLPA (AFL Players' Association) are doing a great job with the AFL to try to get to the bottom of it.
"But we're not the NFL. We can't use those statistics over here because we don't play the same sport.
"I've been concussed twice in the last two years and missed the following week both times.
"I seem to come to pretty quickly but it's the next three or four days that I have trouble with."