During the 2017–18 season Salzburg had their best ever European campaign. They finished top of their Europa League group for a record fourth time, before beating Real Sociedad, Borussia Dortmund and Lazio, thus making their first ever appearance in the UEFA Europa League semi-final. On 3 May 2018, he played in the Europa League semi-finals as Marseille played out a 1–2 away loss but a 3–2 aggregate win to secure a place in the 2018 UEFA Europa League Final.