The captain's comeback is one of four changes from Quique Flores after last weekend's loss at Tottenham Hotspur, with Deeney partnering Nordin Amrabat behind Odion Ighalo in place of Jose Jurado and Almen Abdi.
For the hosting Palace, Alan Pardew makes just one change from the side that took a point at Swansea City last Saturday, with Connor Wickham coming in for Lee Chung-yong as partner for Emmanuel Adebayor in a two-man attack.
Crystal Palace: Hennessey; Ward, Dann, Delaney, Souare; Zaha, Jedinak, Cabaye, Mutch; Wickham, Adebayor
Subs: Speroni, Mariappa, Kelly, Boateng, Lee, Chamakh, Campbell
Watford: Gomes; Nyom, Prödl, Cathcart, Ake; Behrami, Watson, Capoue; Amrabat, Deeney; Ighalo
Subs: Pantilimon, Paredes, Holebas, Suarez, Guedioura, Anya, Abdi
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