Watford head coach Javi Gracia has resigned after just over three months in the job following their 2-0 defeat by Swansea City.
Gracia, who only returned for a second spell at Vicarage Road in October, called for a meeting with club owner Gino Pozzo following Saturday's loss, saying the team were in a "very difficult moment".
Charlie Daniels, Dan Gosling and Adrian Mariappa are set to be in the dugout when the team make the trip to face Hull on Tuesday.