Coach of Sporting Lisbon, Jose Peseiro, has been sacked following a 2-1 League Cup defeat to second division side Estoril.
Sporting’s fourth defeat of the season proved the last straw for club president Frederico Varandas.
Varandas sacked the 58-year-old Peseiro on Thursday to end his second spell at the club having led them to the Europa League final in 2005.
The reins of Sporting, who are only two points behind league leaders FC Porto in fifth place, are now set to be handed to assistant coach Tiago Fernandes on an interim basis.
Although now out of the League Cup, Sporting are poised to qualify for the last 16 of the Europa League. They sit second in Group E, three points behind Arsenal and three ahead of FC Vorskla.
Former Portugal international, Paulo Sousa, is being eyed to succeed Peseiro, although a pair of former Sporting coaches – ex-Monaco coach Leonardo Jardim and Jorge Jesus – are also reported to be in the race for the position.