Nuno Espirito Santo said he is upset to leave Valencia, but he has urged fans to support the youthful Spanish outfit as they attempt to compete with Europe's elite.
Nuno ended his reign as coach following nine-man Valencia's 1-0 loss at La Liga rivals Sevilla on Sunday, with the club ninth in the standings.
The 41-year-old announced his decision during the post-match media conference after just one full season at the Mestalla, having led Valencia to a fourth-place finish last term.
Speaking to reporters afterwards, an emotional Nuno said: "I ask that the fans continue to support the youngest squad in La Liga. Tomorrow we will give more details.