Watford have won four of their last five matches in the league, a run of form that has moved them into fourth position in the table, just one point off second-placed Leicester City.
Palace's form has suffered somewhat in recent weeks with two defeats from their last five, but a strong beginning to the campaign sees them occupy fifth spot, just one point from their opponents on Friday.
Watford's home form has been patchy this season with eight wins, two draws and five defeats, while Palace have won five of their 15 matches on the road. The reverse fixture took place on the opening round of fixtures in August, with Watford running out 3-2 winners at Selhurst Park.
Watford, meanwhile, have no fresh injury concerns from the weekend and are once more expected to name Troy Deeney and Matej Vydra, who is reportedly close to agreeing a permanent deal with the club, in attack.
Watford: Almunia; Hall, Doyley, Pudil, Casetti; Chalaboh, Ekstrand, Abdi, Battocchio; Denney, Vydra
Palace: Speroni; Moxey, Delaney, Ramage, Richards; Butterfield, Marrow, O'Keefe, Bolasie; Zaha, Murray
Sports Mole says: 1-1