Watford will check on defender Craig Cathcart, who has been troubled by a groin strain, ahead of Saturday's Premier League match at West Ham.
Defender Brice Dja Djedje is also doubtful with a foot problem, while Argentina midfielder Roberto Pereyra could make his first start, having scored when coming off the bench in the home defeat to Arsenal before the international break.
Adrian Mariappa has rejoined the Hornets after being released by Crystal Palace earlier this summer, and 20-year-old Brazilian midfielder Kenedy could be included after signing on a season loan from Chelsea.
Provisional squad: Gomes, Prodl, Kabasele, Kaboul, Holebas, Pereyra, Capoue, Behrami, Amrabat, Ighalo, Deeney, Pantilimon, Watson, Zuniga, Sinclair, Guedioura, Success, Janmaat, Cathcart, Dja Djedje, Mariappa, Kenedy.
Source: PA-WIRE
