The 22-year-old has become Marco Silva’s sixth signing as he returns to the club where he impressed during a loan spell in the 2012-13 season
Watford have completed the signing of Nathaniel Chalobah from Chelsea on a five-year deal.
The 22-year-old has left the Premier League champions to move to Vicarage Road for an undisclosed fee.
Chalobah, who will wear the number 14 shirt, impressed during a loan spell with Watford during the 2012-13 season, scoring five times in 38 appearances in the Championship to help the Hornets to the play-off final.
He played just 15 times under Antonio Conte at Chelsea last season and the club’s reported pursuit of Monaco midfielder Tiemoue Bakayoko prompted speculation that he would be allowed to leave.
Chalobah will wear squad number 14 for #WatfordFC
Welcome back, @chalobah!
— Watford FC (@WatfordFC) July 13, 2017
The England youth international is Watford boss Marco Silva’s sixth signing of the transfer window, following Tom Cleverley, Will Hughes, Daniel Bachmann, Jorge Segura and Kiko Femenia to the club.