Sacked Brisbane AFL star Brendan Fevola plans to take an anti-alcohol drug for the rest of his playing career.

The two-time Coleman Medallist took the first step back to football on Tuesday, joining his new VFL outfit Casey at training, as he attempts to convince AFL clubs he is worth another shot.

It follows a nine-week stint in rehabilitation, which his management company says shows he is determined to change the trouble-prone ways which cost him spots at Carlton and the Lions.

They say his commitment to taking a drug which will make him violently ill if he drinks alcohol is a further guard against any more drunken mishaps.

"For a start he's taking an anti-alcohol drug which makes it impossible, because if he drinks on this drug he virtually becomes unconscious straight away," Velocity's Peter Blucher told SEN radio on Tuesday.

"He has to commit to take that of course and that's a commitment he's given.

"It stays in his system for a couple of weeks and he's committed to doing that for the duration of his sporting career."

While his manager talked up Fevola's new-found resolve, the player himself kept quiet as he turned up to Casey Fields, only offering the words: "I hope I train well" to a pack of reporters.

He will talk about his sacking and rehabilitation on the Nine Network's AFL Footy Show on Thursday night.

Casey's decision to recruit Fevola has annoyed their AFL affiliate, Melbourne, who fear it will reduce opportunities for the Demons' developing young forwards.

The 30-year-old will also train with Casey on Thursday, before taking an overseas trip.

Barring any setbacks, a contract will be signed when he returns.

"It's a bit of an engagement prior to a wedding and that's a pretty short-term thing," Blucher said.

"Casey needs to be convinced that Fev's going there with the right intentions.

"As far as we're concerned he certainly is.

"He's sees it as two things - a chance to get his footy back on track and also to have a positive influence on some young guys."

AFL chief executive Andrew Demetriou supported Fevola's VFL comeback and said it might help him overcome the alcohol and gambling problems for which he is being treated.

He said the league would not block an AFL return, if Fevola convinced a club to draft him for next season.

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