Emerging Fremantle Dockers star Andrew Brayshaw says Ross Lyon will do a great job at Carlton, if he gets the vacant Blues coaching position.

Lyon has been heavily linked with Carlton, following the sacking of David Teague on Thursday.

"Ross was a great coach when he was at Freo," Brayshaw told ABC Perth's SportsTalk program.

"In my first two years, the growth that I had was mostly put towards Ross.

"I definitely think he would give it a red hot crack, and could take them to really high places.

Lyon is the favourite for the vacant role, with Blues president Luke Sayers telling SEN he had spoken with the former Saint Kilda coach.

"What I can tell you is I did have a conversation with Ross," Sayers said.

"Ross is excited to put his hat in the ring once we figure out whatever is the process to move forward at the Carlton footy club."

Lyon expressed an interest in the job before Teague was sacked, and has also turned down an invitation to interview for the vacant Collingwood role.

Speaking on Channel 9, Lyon said he had spoken to Collingwood general manager of football Graham Wright.

"Graham reached out to a friend to get my number ... I said respectfully I wouldn't entertain that for a variety of reasons," he said.

"I think there's instability, I think it's the father-sons, I think Nathan's (Buckley) a bit unlucky."

"Ultimately I think successful clubs … have got alignment of where they're at and where they're going, and if you see misalignment it's a red flag."

Lyon coached Fremantle in 184 AFL games from 2012 to 2019, winning 96 of those, and leading them to a grand final and a minor premiership.

He was sacked with one round remaining in 2019, after missing finals for a fourth straight season.

Brayshaw sad to see Cerra go

Carlton is the favourite to land want-away Fremantle midfielder Adam Cerra, after he requested a trade to Melbourne for family reasons.

Cerra and Brayshaw were drafted together in 2017, and formed key components of the Dockers midfield this year, along with captain Nat Fyfe and veteran David Mundy, and the AFL Coaches Association's best young player Caleb Serong.

"Its disappointing to see that Cez (Cerra) has requested a trade, not only as a player, but yeah, one of my really close mates," he said.

"He took another step forward this year, was an integral part of our midfield, and provided us a lot of class on the outside.

"There's going to be a big gap to fill.

"He was a massive part of our engine room this season."

In 18 games this season, Cerra averaged 23 disposals, 3.5 clearances and five inside 50s.

Brayshaw joins elite company

Brayshaw's outstanding season for the Dockers was rewarded with his first Geoff Christian Medal, which is awarded to the best performed Fremantle or West Coast player as judged by the ABC's Grandstand AFL experts.

The 21-year-old is the joint second youngest winner of the award, alongside Fyfe, while Paul Haselby was 19 when he first won the award.

Brayshaw received votes in 12 games and grabbed the maximum 3 votes in six of those outings to finish with 30 votes, well clear of veteran teammate David Mundy (22 votes) and West Coast midfielder Dom Sheed (19).

"This season for me was another step forward," he said.

"This is the first time we've been fighting it out towards the end of the season since I've been here, so really happy with the season."

Brayshaw averaged more than 28 disposals per game, and just under four clearances and five tackles, across his 20 matches this year.

He said increased responsibility had allowed him to play more consistently as a midfielder.

"In previous years I've probably played other roles outside of probably inside mids, then slipping out onto a wing, going forward for a little bit, and probably struggled to really cement my spot as an inside midfielder," Brayshaw said.

"I think I was given a fair opportunity in there to really sort of stamp my authority and have that consistency of of playing in that same role every week."

The medal was established in recognition of Geoff Christian, a valued member of ABC Radio's Sports Talk program for a period of 14 years prior to his death in November 1998.

Christian served as chief football writer of The West Australian newspaper from 1961 to 1998 and was posthumously inducted into the Australian Football Hall of Fame.