Given that Walsh hasn't even made five full games back without that joint blowing up - you have to wonder whether his career is in jeopardy. He suffered a very bad injury. Players sometimes don't come back from such. Or if they do - not what they once were.
He's had the best surgery and physio possible. And I'm sure the medical staff will have worked countless hours with Walsh to strengthen the surrounding tissues.
If he was declared fit to play complications were unlikely. Is this the first occasion the joint has failed? After all, Walsh seemed to be gearing up for a much earlier start to the season and then was pushed back.
I can't remember whether it was the same injury which caused him to bump the schedule back. If it was ... and it's just failed again the future doesn't seem great.
Fingers crossed.