Yes, Varun Aaron is injured and won't be playing the entire season. And I read about that Ben Rohrer signing but forgot to post about it here.
So this has been the summary so far:
Kevin Pietersen out for the whole tournament
Jesse Ryder out for the whole tournament
Varun Aaron out for the whole tournamet
Morne Morkel to miss the first game and maybe the second one too as he his playing domestic cricket in South Africa
Ben Rohrer replaces Kevin Pietersen
Virender Sehwag's back injury rules him out of the first game
Well a lot of things happening this time and the tournament hasn't even started yet.