The Demons have played musical chairs with their long-term injury list, with Grimes, who was listed as a result of a groin injury, returning from it and high-flying forward Russell Robertson heading there as a result of his season-ending achilles injury.
Robertson's listing means promoted rookie Austin Wonaeamirri can remain on the primary list for the rest of the 2008 season and be eligible for every senior Melbourne match.
Football operations manager Ross Monaghan explained the situation to melbournefc.com.au.
"The logistics are that Russell Robertson has been transferred onto the long-term injury list and Jack Grimes comes back onto the primary list from the long-term list. Russell's movement onto the long-term injury list allows Austin Wonaeamirri to stay on the primary list. That's good for 'Aussie', but bad luck for 'Robbo' and fantastic for Jack," Monaghan said.
Monaghan said Grimes, who is viewed as an outstanding long-term prospect for the club, will play "about 40 to 50 per cent game-time" in his first appearance for the club, via its affiliate Sandringham.
