YOU KNOW you're at the top of your game when opposition sides develop drills to take down a single player.

That's just what Melbourne appeared to be doing in its main training session on Saturday at Gosch's Paddock ahead of taking on superstar Dustin Martin (and the rest of his Richmond teammates) in the Anzac Day Eve clash on Tuesday night.

The Demons broke up into groups, with one player attempting to take on up to four teammates at a time by liberal use of the 'don't argue' fend-off that has become synonymous with Martin's game.

The Melbourne "opponents" would then gang-tackle the player with the ball, practising in an attempt to overcome Martin's brute strength in a drill lasting around five minutes.

Cries of "Dusty, Dusty" could be heard (although there's a chance it was "Gussy, Gussy" for Melbourne player Angus Brayshaw).

The Brownlow medallist is in excellent touch, kicking a career-high six goals last week against Brisbane.

He averages 22 disposals, five clearances and a goal in his 10 matches against Melbourne.

Just who Martin may come up against is still up in the air, after Bernie Vince, Jeff Garlett, Tom Bugg and Bayley Fritsch were named in an extended squad for VFL side Casey.

All four played last week in Melbourne's dispiriting 67-point loss to Hawthorn and trained with the main group on Saturday.

Jayden Hunt and Billy Stretch have been listed as outs for Casey and could be in line for a senior call-up.

The AFL team will be named on Monday night.

Neville Jetta trained well after rolling his ankle in last week's match, but defender Sam Frost ran laps and trained in the rehab group alongside co-captain Jack Viney, who is still several weeks away with a foot injury.

Frost was moving fairly freely with no obvious injury but didn't take part in any contact drills.

Tom McDonald's return from a toe injury took a step up, splitting his time between the main group and his own running drills.

Veteran Jordan Lewis, who is recovering from a broken hand, appeared on the sidelines to offer some friendly advice to his teammates.