Watford have confirmed the signing of midfielder Gerard Deulofeu from Barcelona on a five-year contract.
The Spaniard, who was loaned out by his parent club to Vicarage Road in January, has made his stay in Hertfordshire permanent by agreeing an £11.5m deal with the Hornets.
"We are very pleased to welcome Gerard back to Vicarage Road and thank FC Barcelona for their part in concluding this deal," Watford's chairman and CEO Scott Duxbury told the club's website.
"Our ambition to succeed and grow in the Premier League remains as strong as ever."
Deulofeu, who has also spent time with Everton in the Premier League, appeared seven times for Watford after joining from Barcelona.