Sean Murray could well come back into contention for Watford's home clash against Bristol City.
The talented midfielder missed Tuesday's 1-0 defeat to Brighton with a dead leg picked up last weekend at Bolton but his omission in midweek was more of a precaution.
Defender Marco Cassetti was withdrawn at half-time against the Seagulls suffering with minor concussion and will be assessed.
Striker Troy Deeney - back training with the club following his release from prison - defender Fitz Hall and midfielder Stephen McGinn all featured in a friendly against QPR on Wednesday afternoon but are unlikely to be ready in time for this weekend.
Forward Alex Geijo has picked up a minor groin complaint and continues to miss out, along with captain John Eustace (back), Prince Buaben (thigh) and Geoffrey Mujangi Bia (groin).
Bristol City will be without Greg Cunningham and Cole Skuse after they both picked up ankle injuries against Peterborough on Tuesday.
Defender Cunningham was stretchered off with suspected ligament damage following a tackle from striker Tyrone Barnett.
Skuse received stud wounds when he clashed with Nathaniel Mendez-Laing and will have to wait until Friday's scan to find out the extent of his injury.
Right-back Mark Wilson has returned to fitness and could be named in manager Derek McInnes' matchday squad after missing his side's last two games through injury.
Scotland defender Richard Foster is set to deputise should Wilson miss out again.
McInnes has no other injury worries to speak of as he looks to build on Tuesday's win which put his side up to ninth in the Championship table.