The news sucks obviously, but hopefully it's nothing serious and some treatment and rest will be enough for Perk, like it was during the series Cleveland (I remember he had a knee problem for game 3 or 4 right?).
We need Perk to be close to full strength to defend on Howard. Sheed does a surprisingly good job on Dwight too but mike j804 I'm scared he will get in foul trouble often.