Etienne Capoue has left Watford after the midfielder completed a permanent move to Spanish side Villarreal for an undisclosed fee.
The Frenchman looked set to join former Hornets boss Javi Gracia at Valencia in the summer, but a transfer failed to materialise.
The 32-year-old played 181 games for the Hornets after joining from Tottenham in 2015, for a fee of around £6.3 million, which was a club record at the time.
A statement from Watford confirmed his departure.
'Etienne Capoue has left Watford after completing a permanent transfer to Spanish La Liga side Villarreal for an undisclosed fee.