Fremantle coach Mark Harvey has refused to guarantee Brett Peake a spot in Saturday's MCG showdown with Collingwood despite the speedy AFL midfielder serving his club-imposed ban.

Peake was dropped for last week's loss to Geelong after breaking team curfew the night before a training session during the mid-season break.

The club initially tried to keep the reason behind his omission a secret but the story was leaked to the media.

Peake, who has notched 68 games since his debut in 2005, was solid without starring for WAFL side East Fremantle last Saturday but Harvey refused to go into detail when asked about the 25-year-old's axing from the senior side.

"I'm not into character assassination, we've dealt with it in-house and we've moved on, and that's how it should be seen," Harvey said on Wednesday.

"No one else needs to know anything other than how we've dealt with it.

"We've dealt with it in an appropriate manner and we've moved on.

"I think right across the board, from a behavioral point of view we are doing a lot of things right.

"Occasionally you'll have something that you'll have to deal with which is minor."

When asked whether Peake would earn an automatic recall, Harvey said: "He'd be one of the guys available for selection."

Clancee Pearce (hamstring), Des Headland (quad) and Hayden Ballantyne (back) will be further assessed on Thursday morning to determine their availability, but Michael Johnson will miss at least another week with an ankle injury.

But in good news for the Dockers, 20-year-old forward Chris Mayne will play his first competitive fixture of the year, albeit in the WAFL, after recovering from a serious foot injury.

The Dockers will be looking to break a five-game losing streak when they tackle high-flying Collingwood in a match that will pit Fremantle veteran Chris Tarrant against his former club.

Harvey believed Tarrant, who played 161 games for the Pies before crossing west at the start of 2007, was on track for All-Australian selection following his remarkable transformation from forward to key defender this year.

Tarrant has quelled the likes of Brad Johnson, Cameron Mooney, Matthew Lloyd and Warren Tredrea this year in what has been a remarkable transformation for the 28-year-old, who struggled to kick goals in his first two years at Fremantle.

"If you look at who he plays on you would say yes (he should be in the All-Australian mix) because he plays on the key forward or the major forwards of the opposition every time," Harvey said.

"He's been exceptional.

"It (the experiment of switching him to defence) was either going to work or it wasn't going to work.

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