Watford midfielder Abdoulaye Doucoure could return to action this weekend after missing the last four games due to injury.
And defender Kiko Femenia could also be involved at home to Everton in the Premier League on Saturday after recovering from a hamstring injury.
Manager Javi Gracia said: "We have two players, in Kiko and Doucoure, who have both been injured in the last week, but they started training this week and both have possibilities to play."
Asked if Doucore might be eased into action off the bench, Gracia added: "He is training with the team and I think he is ready for the next game.
"I think he will be ready, but we'll decide the line-up tomorrow.
"He will be in a good condition to compete."
However, top scorer Roberto Pereyra will be on the sidelines, having picked up an injury at Tottenham last month.
Gracia said: "It is something in his hamstring.
"He needs more time to recover. In a couple of days, we'll see if he will be ready.
"It is always important not to lose one player like Roberto, but you know I don't like to complain about players I don't have.
"I prefer to focus on players I have available."