COLIN Sylvia's hopes of earning his Fremantle debut will have to wait at least another fortnight after the former Demon's suspension by the WAFL Tribunal.



Sylvia was found guilty of rough conduct on Tuesday night for his off-the-ball strike on Subiaco's Brett Mahoney.



On Monday following the charge, Fremantle coach Ross Lyon went on radio and slammed his new recruit for a "lack of discipline".



Lyon said Sylvia's charge could not have come at a worse time.



"(It was a) lack of discipline. I'm certainly not pleased," Lyon told Perth radio station 6PR.



"It's the last thing Colin and the club need, there's no doubt about that. We've got some injury worries and he was actually building some pretty good form.



"It's a significant hurdle he's put in front of himself and the club. I'm certainly not pleased but at the end of the day life goes on and we'll pick those that are available."



Sylvia had just 13 disposals in Peel's 17-point loss to Subiaco on Saturday.



He is averaging 16 possessions across three appearances in the WAFL this season.



The free agency recruit was not reported on the day for the incident involving Subiaco's Brett Mahoney but was subsequently charged following a review of the available video.



The WAFL Tribunal found him guilty of rough conduct and suspended him for two matches, which means he will not be available to represent either Peel Thunder or Fremantle until round seven.



Sylvia was named as an emergency for the Dockers' clash with Essendon on Sunday even though injuries to Michael Barlow, Michael Walters, Chris Mayne, and a suspension to Nat Fyfe presented openings in the side.



"I actually spoke to him on Friday just prior to the game saying 'you obviously aren't too far away from knocking on the door so keep playing well and keep going'," Pavlich said.

"We've sat down with him a couple of times and checked in to see how he was tracking. We felt he had developed and grown.

"Clearly it's disappointing that he was reported. H e'll learn from this one and move on."

Pavlich said it hadn't been an easy transition for Sylvia, who moved west as a free agent during the off-season after playing 157 matches over 10 years at the Demons.

"I think anyone that comes into this environment needs to buy in as quickly as they can and Colin certainly did that," Pavlich said.

"He took some time to understand exactly how we do it here and what we stand for but certainly he's bought into that and is going quite well. It's just disappointing to have a setback like that on the weekend."

The Dockers' depth has been tested in the past few weeks due to injuries and suspensions, however, they beat Essendon comfortably last Sunday without the services of Fyfe (suspension), Barlow (knee), Walters (ankle), Chris Mayne (ankle), and Ibbotson (shoulder) while David Mundy did not play after half-time due to concussion.

Mundy is expected to fit for Saturday's clash with the Sydney Swans, while Fyfe will return and Pavlich believes Mayne is also a chance to play.

"He trained today, or at least ran today," Pavlich said.

"He'll have to pull up from that and see how he is. I believe he pulled up pretty well."

Pavlich said Garrick Ibbotson did some running at training but was still a few weeks away.

The club is yet to determine the seriousness of Walters' ankle injury. Lyon has already suggested he may not play again this season but Pavlich says the club will know more on Wednesday.

"I believe he's getting an update tomorrow from the specialist," Pavlich said.

"He's tracking OK, but tomorrow's the day when we will find out what the progress is."