Watford are without suspended captain John Eustace, and Stephen McGinn is beginning a long lay-off after suffering knee ligament damage.Lloyd Doyley (hamstring) is still out and Danny Drinkwater is a major doubt because of a thigh injury, but Will Buckley (ankle) is fit to return.
Millwall midfielder Jimmy Abdou is out with a knee problem.
On-loan QPR man Martin Rowlands could make his debut, while Josh McQuoid (ankle) is back in the squad.
MATCH PREVIEW
Without a win in eight league matches, Watford lost more ground in the race for the play-offs when they drew 1-1 with struggling Doncaster Rovers last time out.
The Hornets have been a surprise package this season - just ask leaders leaders QPR and third-placed Cardiff - but the lack of depth to their squad has been highlighted in recent weeks, and boss Malky Mackay has been on the lookout for a loan signing.
Millwall, who are one point above them, are also struggling to keep in touch with the top six. Kenny Jackett's side are without a win in four matches, but can take heart from their deserved point against high-flying Nottingham Forest last time out.
Watford legend Jackett, who served the Hornets as a player, coach and manager, returns to Vicarage Road hoping the Lions can avenge the 6-1 mauling they suffered at the hands of his former club at The Den in September.
MATCH FACTS
Head-to-head
• Millwall have won 40 and Watford 26 of the 93 previous matches between these clubs.
Watford
• Watford have drawn four matches and lost four since their last league win: a 3-0 victory against Derby on 15 January.
• The Hornets have failed to score in only five of their Championship games this season - a feat bettered only by Leeds.
• They have squandered 24 points from winning positions, drawing six and losing four league matches in which they were ahead.
Millwall
• Millwall have won only one of their last five matches.
• They are the only team in the division to have lost all their (nine) matches in which they have conceded more than one goal.
• The Lions have scored three goals in each of their last three away games.
Source: BBC Sport
Source: BBC Sport