Daniel Pudil is expected to be fine for Watford's Boxing Day Sky Bet Championship clash at home to Millwall, but Hector Bellerin remains a doubt.
Wing-back Pudil was forced off as a precaution nursing a hamstring complaint in the latter stages of Saturday's 1-1 draw at Ipswich - new head coach Giuseppe Sannino's first match at the helm since taking over from Gianfranco Zola.
Versatile on-loan Arsenal right-back Bellerin missed the encounter altogether with a minor hip injury and will be assessed.
Marco Faraoni (ankle), Almen Abdi (foot), Essaid Belkalem and Tommie Hoban (both ankle) remain sidelined as Sannino takes charge of his first home game.
Millwall, meanwhile, will check on skipper Paul Robinson ahead of the trip to Watford.
The defender needed stitches in an ankle wound following Saturday's 2-0 home defeat by Middlesbrough.
On-loan full-back Justiin Hoyte is available after he was ineligible to face his parent club while boss Steve Lomas has been boosted by the return of three players to training ahead of the clash.
Midfielders Richard Chaplow (groin) and Nicky Bailey (knee) hope to be in contention at Vicarage Road along with winger Lee Martin, who has recovered from a hamstring injury.