"It's a decision for the manager and we can only do what we have got to do. He has told me he is going to make a decision before the Arsenal game.
"He is going to wait and see how we do and the is one game left so it us up to both Dean and myself to work hard in the next couple of weeks.
"I thought we both did what we had to do well last night (against Walsall) and the rest is down to the manager.
"It was nice to get another 45 minutes and it's always nice to make a couple of saves which I was pleased with."
Asked whether it would be disappointing to miss out, Carson added to the Birmingham Mail: "It would be a big blow but I am not the sort of person to sulk.''