Marco Silva leaves Hull City after their relegation
Silva leaves just days after the Premier League ended with Hull relegated to the Championship.
The 39-year-old manager replaced Mike Phelan in January and led a determined battle to beat the drop.
But 2-0 defeat to Sunderland was a damaging blow to their hopes and relegation was confirmed when they lost 4-0 to Crystal Palace.
Silva's contract included a clause which allowed him to leave if Hull failed to beat the drop and the Portuguese coach has opted to exit the KCOM Stadium.
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He [Silva] has chosen to leave in order to further his career
Hull City's statement
Hull's statement said: "The Club can announce that Marco Silva has opted to leave his position as Head Coach. Confirmation had been delayed due to finalising the terms of his release.
"Marco was offered the opportunity to continue the work he has done in the four-and-a-half months he has been at the KCOM Stadium. Unfortunately, after considering his future, he has chosen to leave in order to further his career and departs along with Assistant Head Coach Joao Pedro Sousa, First Team Coach Goncalo Pedro and Goalkeeping Coach Hugo Oliveira.
"Although disappointed by Marco’s departure, we would once again like to place on record our appreciation of his efforts and those of his support staff.
"Despite only being in charge for a short period of time, the 39-year-old became a firm fans’ favourite and will be forever remembered for his efforts to maintain our Premier League status.
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Marco Silva has been linked with the vacant Crystal Palace job
"The Club will now undertake a thorough and considered recruitment process to appoint a replacement.
"There will be no further comment at this time."
Silva becomes fourth Premier League manager to leave their club last month and he has been linked with the vacant position at Watford.
But Express Sport understands Crystal Palace are keen on bringing him to Selhurst Park after the shock departure of Sam Allardyce on Monday.