There are no changes in Watford's team news with Younes Kaboul, Miguel Britos (both ankle), Kiko Femenia, Will Hughes (both thigh), Nathaniel Chalobah, Isaac Success and Craig Cathcart (all knee) still out.
Southampton have Cedric Soares (ankle) and Wesley Hoedt (head) back in training but both defenders will be assessed to see if they can return.
Striker Charlie Austin (thigh) is still injured and Jeremy Pied (knock) is doubtful.
Watford’s only home Premier League victory against Southampton came in their very first such meeting against them, 3-2 in December 1999 (D1 L1 since).
Southampton are winless in nine Premier League matches (D4 L5); only West Bromwich Albion are on a longer current such run (20).
The Hornets have won 48% of their Premier League points in home matches this season (12/25), the lowest ratio in the competition.
Nathan Redmond has scored four goals and provided one assist in his five PL appearances against Watford, netting more against the Hornets than he has any other opponent in the competition.
Marco Silva: "We analysed our opponent and we know they feel pressure. Our form is not the best and we need to prove again that we are in a good way."
Mauricio Pellegrino: “I think in all aspects we have moved one step forward and we want to show in the game against Watford that we are growing.”
Referee: Roger East
Assistants: Ian Hussin, Derek Eaton
Fourth official: Anthony Taylor