threelittleturds
anteater
His shoulder injury came up earlier in the offseason when people were saying Justin Smith was the only reason for Aldon's success.
So, knowing of his injury, I went back to find it. I can't remember the exact details, but the Bears game was the key. He either showed up on the injury report every week following the Bears' game, or starting with the Bears' game. I can't remember if he was on the injury report for that game or not and can't be bothered to go check.
Anyway, week 11 was when the shoulder became an issue.
I'd have to imagine it came after the Bears game... he had 5.5 sacks that game. My money is that it happened in the game against the Dolphins, since after that he stopped getting sacks.
Or... maybe he partially tore it in the Bears game and during the Dolphins game he completely tore it... requiring the surgery.