Meanwhile, midfielder Mathias Ranegie will serve the final game of a three-match ban for the Hornets this evening.
Right-back Adam Henley is out for Blackburn as he is currently nursing an ankle injury.
Midfielders Tom Cairney and Ben Marshall remain out for the visitors because of the same problem, though the former is apparently close to a return.
Watford: Almunia, Hoban, Angella, Ekstrand, Cassetti, Murray, Tozser, Merkel, Pudil, Deeney, Anya
Subs: Battocchio, McGugan, Doyley, Faraoni, Diakite, Neill
Blackburn Rovers: Robinson, Kane, Kilgallon, Keane, Spurr, Evans, Williamson, Dunn, Conway, Rhodes, Gestede
Subs: Eastwood, Hanley, Olsson, Varney, Taylor, Feeney, Dabo