Barcelona striker Thierry Henry is backing Carlos Vela for success at Arsenal.
The former Gunners captain said: "Carlos is a very good player, as he arrived at Arsenal I was there, but I don't know why he had to go to Spain to play more before he went back to Arsenal.
"He proved this year with Osasuna that he is a great player and that he will be able to do important things in the English Premiership."