 Complete the following phrase:  On 17 July 2015 Sevilla FC reached an agreement with Bordeaux for the transfer of Mariano, with the player signing a three-year deal. He made his debut on 11 August in the UEFA Super Cup, coming on in the 80th minute for Kévin Gameiro in a 54 extra-time loss to fellow Spaniards FC Barcelona in Tbilisi. Mariano made ten more European appearances as the Andalusians went on to win the UEFA Europa League  scoring his sole goal to cap off a 52 aggregate win over FC Shakhtar Donetsk in the semi-finals  including the entirety of the 31 victory over Liverpool in the 