The Addicks have been the worst-performing team in the division for the past six games with three defeats and three draws.
In contrast, Watford can pick up a fourth victory from seven matches as they look to keep themselves in the playoff places.
Watford: Almunia; Neuton, Pudil, Hoban, Chalobah; Ekstrand, Hogg, Anya, Abdi; Deeney, Vydra
Charlton: Hamer; Evina, Dervite, Solly, Cort; Jackson, Stephens, Pritchard, Wilson; Wright-Phillips, Kermorgant
Sports Mole says: 2-0