Valencia sacked coach Albert Celades and appointed long-standing club servant Voro until the end of the season, the La Liga club said in a statement on Monday.
According to Spanish media reports, Sanchez decided to resign after telling the squad earlier on Monday that Celades would remain in charge for Wednesday’s game against Athletic Bilbao, only for him to be sacked hours later.
Sporting director Cesar Sanchez then announced his resignation shortly after Celades was dismissed, deepening the institutional crisis at one of Spain’s most prestigious clubs.
Celades is the sixth manager Valencia have sacked since the club was bought by Singaporean billionaire Peter Lim in 2014 while Sanchez, who was appointed in January, is the sixth sporting director to have left the role in the same period.
Assistant coach Voro will take charge of the first team on an interim basis until the end of the 2019-20 La Liga season. It will be his sixth spell at the helm.
Voro, who represented the club as a player for nine years, has previously won 18 of his 36 games while working as a caretaker.
Valencia have won just one of their five games since the league returned from its coronavirus-enforced stoppage, and they have been victorious twice in their past 13 outings in all competitions.
Celades, who took over from Marcelino in September, leaves the club eighth in La Liga, eight points adrift of the Champions League places.
A Valencia statement read: “Valencia have communicated to Albert Celades his removal from his position as first-team coach, with immediate effect.
“The club wish to thank him publicly for his work and dedication during his time at the club – a period in which we achieved qualification for the knockout stages of the Champions League and important victories at grounds where we had previously not won.
“The club also value his help and contribution since he took over as coach of the first team in a moment of difficulty, and wish him every success in his future endeavours.”