Either way, it's an opportunity to prove you deserve the spot. If reports are true that at least one is looking elsewhere, then they really need to get a grip. These players don't have dibs on a spot in the team - especially if they are not playing to their potential.I'm not convinced they were "sulking" or whether they were just "disappointed". I don't recall hearing anything definitive one way or the other.
If the latter, I'd say that's entirely understandable.