Quique Sanchez Flores confirmed Etienne Capoue suffered a ‘serious’ injury during the semi-final defeat to Crystal Palace although the precise nature of the problem is not yet known.
Etienne Capoue was forced off during the Hornets' 1-1 draw with Everton last weekend but has recovered and will be available for the trip to the Hawthorns this weekend.
Etienne Capoue has been a rock for Watford this season but he will have to race against time to recover from illness in time to feature at White Hart Lane on Saturday.
Etienne Capoue and Allan Nyom were both strong but they couldn't stem the tide for the entire match and Arsenal eventually earned a hard-fought 3-0 win at Vicarage Road.
Tottenham have formally announced that Etienne Capoue has joined Watford on what is believed to be a £5million transfer.
The midfield clear-out at Tottenham looks set to continue with Etienne Capoue and Benjamin Stambouli likely to join Premier League new boys Watford.
Sky sources understand that Napoli are in talks with Tottenham over Etienne Capoue.
Tottenham's France midfielder Etienne Capoue will be out for four weeks after a scan revealed he sprained an ankle in Sunday's 1-0 defeat at Arsenal.
Tottenham boss Andre Villas-Boas has admitted he has concerns about the fitness of new signing Etienne Capoue after he was carried off with a leg injury in the 1-0 defeat to Arsenal.
He was relegated to the substitute's bench but despite playing so few minutes Etienne Capoue tied for the lead in passes intercepted this weekend.