Assistant coach Jose Luis Ribera and physical trainer Eduardo Dominguez have also handed in their resignation at the Basque club.

A statement on the Sociedad website read: "Real Sociedad want to thank all of them for the work they have done at our club, and at the same time wish them the best in their professional and personal futures."

Sociedad, who had been a fixture in the Spanish top flight for four decades, were relegated on the final day of the recently-completed season after a 3-3 draw at Valencia left them second-bottom, five points adrift of safety.

The 50-year-old Lotina, who led Espanyol to the Copa del Rey title last season, took over at Sociedad in October following the dismissal of Jose Mari Bakero.