Watford have sacked boss Claudio Ranieri after 14 games and less than four months in charge.
A club statement said a change was needed to give a new appointment time to lift Watford out of trouble.
“The Hornets’ board recognises Claudio as a man of great integrity and honour, who will always be respected here at Vicarage Road for his efforts in leading the team with dignity,” the statement added.
“However the board feels that, with nearly half of the Premier League campaign remaining, a change in the head coach position now will give a new appointment sufficient time to work with a talented squad to achieve the immediate goal of retaining Premier League status.”
The former Chelsea manager Ranieri stunned the world of football by leading Leicester to an unthinkable title triumph in 2016, but he was sacked by the Foxes the following season.
A nomadic career has since seen him go on to manage Nantes, Fulham, Roma and Sampdoria, before he was appointed as Watford boss.