Watford have confirmed that Javi Gracia is the first Premier League manager to leave his post this season, with former Hornets boss Quique Sanchez Flores returning to replace him.
Watford are one of only two clubs without a win from their opening four league games, along with 17th-placed Wolves.
The Hornets lost each of their first three matches before a draw against Newcastle snapped a run of six consecutive defeats stretching back to last season.
That point at St James’ Park was not enough to save Gracia’s job, however, and he leaves after only signing a new four-and-a-half-year deal last November.
“Javi has represented Watford with great dignity and will always be deserving of our fullest respect for his achievements,” said chairman and CEO Scott Duxbury.
Watford also confirmed the departure of Gracia’s coaching staff, less than four months after the club featured in the FA Cup final.
Sanchez Flores, who managed Watford in their first season back in the Premier League in 2015/16, was announced as Gracia’s replacement within half an hour.