Bail missed his third game in succession on the weekend after being a late withdrawal from Melbourne's clash with Greater Western Sydney.
However the club is determined to take a prudent approach to ensure he demonstrates that he has made a full recovery before he returns to play.
Although Bail had trained solidly last week, neuropsych testing conducted on Friday afternoon showed he was not quite back to baseline.
"Our club is being diligent in this area and we are not prepared to play him until those changes have improved," Melbourne football manager Josh Mahoney said.
"It's frustrating for the club and for Rohan. Physically he feels good. He trained all last week. It has just been a frustrating delayed recovery to concussion."
The club's approach is consistent with the AFL's conservative approach to managing concussion. Players diagnosed with concussion during a game must be substituted from the game.
However there is no obligation for a player to not play the following week. Clubs are expected to make sound decisions based on evidence and the player's welfare. The AFLPA is encouraging its players to be responsible and advise clubs if they continue to feel adverse symptoms after being concussed.
Bail, 23, underwent scans recently and has consulted a neurosurgeon as the club's medical staff manage his recovery.
Mahoney said Bail will have further tests later in the week.
"Hopefully he has improved in those areas. He will be available to play as soon as he does," Mahoney said.
