Now two years after leaving Catalonia for Watford on a permanent deal, Deulofeu believes he is realising his potential.
"I'm now a complete player," he said "I've had a lot of experience around the world - in Italy, Spain, England - and you can take some of the best things from every club.
"We've been playing well since Nigel came in and personally I was playing well, doing good things in attack.
"Nigel likes my power. We did a lot of counter-attacks with Ismaila [Sarr] and me which was very good for the team.
"I can create a lot for my team and I'm helping them this year, so let's see if we can finish our objectives of staying in the Premier League.
"I've been keeping in touch with the manager and my team-mates, I've been asking questions as I want to know what they are doing and what's happening there."