Not injured, just couldn't make it into the squad. It's going to be extremely tough for him to nail a spot on the bench, let alone the starting 11 like he dreams of.
There's just so much competition for places at Barca, so I really hope Deulofeu doesn't sign a new contract because of that. But that's all on the basis of getting Neymar. If Barca don't sign Neymar, then I'll be 100% confident that Deulofeu will make steps into the complete first XI.
The thing with Deulo is that he isn't consistent enough to play for Barca (yet), he can have a very good game where he is litterally the catalyst for Barca B but sometimes he can also drift out of games.