correct, which is why the adapted the injury-system last season.
your 4 weeks is a rather big injury.
Therefor I told you you where unlucky. I don't think it has to do with the injury that he had the game before.
Since they tweaked the system last season I bet they are evaluating it right now. If it is still too harsh they might tweak it even more.
I'm not sure how much of the injuries have troubled you lately, but I don't see anything wrong with an occasional longer term injury in a game. My player Korkiamaki ws out for about half a season last season and it didn't realy kill me... It's unpleasant yes, but it's part of the game...
They are not your friends; they dispise you. I am the only one you can count on. Trust me.