WEST Coast twin towers Josh Kennedy and Jack Darling are pushing to be back for Sunday's blockbuster clash with Collingwood, but Liam Ryan will have to return via East Perth after his off-field incident.

In a major boost for the Eagles, coach Adam Simpson confirmed to Channel Seven that Kennedy, Darling, sharpshooter Mark LeCras (wrist) and important defender Tom Barrass (back) are in the mix for the trip to the MCG.

All four were on the track for a light session at Subiaco Oval on Monday, but have to get through main training on Thursday to put their hands up for selection.

Darling's career-best form has been interrupted for the past four matches by a hairline fracture and ankle ligament damage, but he moved well during the short and sharp skills session.

Kennedy kicked on his right leg, which had strapping just below the knee after he suffered a hairline fracture against Sydney in round 13.

"I'm pretty sure Jack's ready to go. He was training really well last week and was probably in contention for the game," Kennedy told 6PR on Tuesday.

"He's still got to get through a bit of training, just like me, but I'm pretty sure he's back in the action.

"Medically, I'm all good to go, so it's just up to the fitness staff now.

"I'll just do normal training on Thursday and have a few tests they want me to go through.

"If all good, then I'll play, but if they make the call and say one more week, then it's one more week.

"It's out of my hands, which is a bit annoying."

While Darling and Kennedy are edging closer, it is unclear whether LeCras, who had little problem marking on Monday after being sidelined for two games by a wrist issue, will be available.

That trio has combined for 79 majors this year, while Barrass' absence since round 11 has been compounded by Simpson's need to swing star defender Jeremy McGovern forward recently.

It remains to be seen whether West Coast will rush its injured quartet back together, however Simpson will have more options at his disposal after chopping and changing his forward line and defensive set-up since the bye.

Ryan also trained on Monday after sitting out of football at the weekend following his early-morning car crash last week.

The former Subiaco star will play his first game for the Eagles' WAFL affiliate East Perth against Swan Districts on Saturday as investigations continue into his off-field incident.

"That's an ongoing process. That will take a few weeks to cover off," Simpson said.

"We just thought in light of what's happened – he did breach our players core values – a week at East Perth and getting some form is important for him at the moment, and looking after his welfare as well."

After notching a vital win over Greater Western Sydney, West Coast's battle with second-placed Collingwood will have significant ramifications for the top four.

The Eagles are less than two per cent behind the Pies but will have to defy a poor MCG record, especially against Collingwood, to secure the points on Sunday.

West Coast has won only two of its past seven at the home of football – both against struggling Carlton – stretching back to the 2015 Grand Final shocker.

The Magpies have won the past 10 clashes between the sides at the 'G since 1995.

Simpson confirmed West Coast won't be granted access to train at the home of football due to Melbourne hosting the Western Bulldogs at the ground on Saturday.