West Coast Eagles midfielder Matt Rosa is facing up to a month on the sidelines and further heartbreak if scans reveal a fractured collarbone.
Rosa spent three games out with a broken jaw before returning to the Eagles side in their comprehensive 49-point win against Collingwood at Patersons Stadium on Saturday night.
But the midfielder collided with team-mate Will Schofield and Collingwood forward Chris Dawes in the early stages of the fourth quarter, suffering the injury.
Having missed the 2011 finals series with a knee injury, the 25-year-old could miss yet another September campaign, with Eagles coach John Worsfold saying the 124-gamer is 'devastated'.
"It's likely there's a fracture there, but we'll have to have that scanned," he said.
"He's devastated. It's bad timing for him. He's disappointed to be missing out on the next few weeks but he'll support the team through it.
"He's got other players that are out injured and can't be part of it right now - Mark Nicoski and Mark LeCras.
"The good thing is he's got a lot of team-mates that are prepared and are in good form to help the team keep progressing.
"Coming off a jaw that was fractured only three weeks ago, it was a credit to him to play his role for the team."