Sheffield United bowed out of the FA Cup last Sunday with a 1-0 defeat to Sunderland at the Stadium of Light, former Hornet Tommy Smith netting the winner after 12 minutes.
Ashley Ward has recently become a long term injury, his troublesome knee is expected to take him out until end of the season.
United can now recall six of there players who was missing due to being cup-tied, non-regulars in the side Ashley Sestanovich, Sasa Ilic and Colin Cryan return as does Carl Robinson, Andy Gray and Paul Shaw.
Super Jack Lester has recovered from a knee in jury and after sitting on bench during that defeat at Sunderland could be promoted alongside Wayne Allison.
Defender Mike Whitlow starts the first of three match suspension after that red card at Crewe
while Nick Montgomery serves one match after five bookings.
Zimbabwean international Peter Ndlovu returns to the squad after recovering from a minor foot injury. Should the loan signing of Derby County's Izale McLoed go through then he could make his debut at Vicarage Road if not then he will almost certainly make it at Millmoor on Tuesday night.
Watford's last opponents were Bradford City, the Hornets lost 2-0 at Valley Parade where former-Blade Dean Windass scored the Bantams second goal.
Left-Back Paul Mayo could make his Hornets debut after his recent £105,000 transfer from Division Three side Lincoln City. Marcus Gayle (hamstring) is injured while Hameur Bouazza (ankle) is back in training but won't start.
WATFORD V SHEFFIELD UNITED
|
| Football League Record v Hornets | ||||||
Venue | P | W | D | L | F | A |
| Bramall Lane | 10 | 4 | 3 | 3 | 16 | 10 |
| Vicarage Road | 9 | 3 | 3 | 3 | 11 | 11 |
| Total | 19 | 7 | 6 | 6 | 29 | 21 |