French club Marseille signed Kostas Mitroglou on a four-year contract on 31 August 2017 .
Eagles in the semi-finals of Taça de Portugal S.L . Benfica ( in Portuguese ) On 28 February 2017 , Mitroglou scored twice against Estoril in the first leg of the Taça de Portugal semi-finals. On 31 August 2017 , French Ligue 1 club Marseille announced the signing of Mitroglou on a four-year contract for a transfer fee of €15 million to Benfica .