BRISBANE captain Dayne Zorko faces a game-day fitness test to prove he's over Achilles soreness in order to tackle West Coast on Saturday night.
The four-time club champion has been on light duties this week after pulling up sore following last week's win over Fremantle – a game in which he kicked the sealer.
It is the same injury Zorko has been battling since returning from the shutdown period and had placed him in doubt for round two.
THE FULL INJURY LIST Who is racing the clock?
"We need to have a look at him, we'll leave it as long as tomorrow morning just to see how he is," Fagan said of the midfielder.
"I'm not sure which way we'll go, but at this stage he's named and in the team and no doubt he'll give it his best shot to be OK, but we won't take any risks.
"Squads win premierships, teams win matches. If he doesn't play, someone else might step up."
Big-bodied midfielder Cam Ellis-Yolmen appears the most likely replacement should Zorko miss, with the former Crow impressing in last week's reserves scratch match against the Dockers as he seeks a Lions debut.
Noah Answerth, Sam Skinner and uncapped draftee Keidean Coleman are the other emergencies.
Fagan said he was hopeful ruckman Stefan Martin – who has been replaced by Archie Smith – would only miss one match.
After suffering PCL damage to his right knee in round one, the veteran received treatment on the same injury during the Dockers clash before playing out the match.
However, Fagan revealed on Friday it was a "slight" hamstring strain on his left leg that had kept him out of Saturday night's date with Nic Naitanui.
Fagan conceded ill-discipline had been high on his radar this week after the Lions gifted the Dockers several goals from free kicks last week to keep them alive in the contest.
The Lions will celebrate Grant Birchall's 250th game and Harris Andrews' 100th match in front of 2000 fans on Saturday night after receiving clearance from the Queensland government.