Cesare Prandelli has resigned as head coach of Valencia in a surprise move with the club sitting 17th in La Liga.
The Italian joined Los Che at the end of September but has only overseen one win in the league since then.
He leaves amid reports of growing unrest in the dressing room, with players such as Daniel Parejo being at conflict with the former Italy and Roma boss.
Prandelli presented his resignation to the board of directors on Friday with Spanish football on its winter break and Valencia are now expected to negotiate the terms of his contract termination.
The coach had already made clear his discontent at Mestalla in recent weeks and had asked chairman Peter Lim to bring in players in January to arrest the slide towards the relegation zone.
On December 9, Prandelli is believed to have irreparably damaged his relationship with some of the Valencia squad when he said anyone unwilling to give everything for the club should leave.
Prandelli's exit has yet to be confirmed by Valencia but Goal understands his decision has been made and an announcement is imminent.
The 59-year-old was the fourth coach to take the helm at Valencia in 2016 following the departures of Gary Neville, Pako Ayestaran and Salvador 'Voro' Gonzalez.
Valencia are back in action on Tuesday January 3 in the Copa del Rey when they take on Celta Vigo at home.