Aubameyang scored his first Arsenal hat-trick in the club's 4–2 win over Valencia on 9 May 2019. Aubameyang also set up the Gunners' second goal, scored by Alexandre Lacazette. Aubameyang's hat-trick meant that Arsenal reached the Europa League final, making it the club's second European final in thirteen years. It also saw him become the first Arsenal player to score a hat-trick in the semi-finals of a European competition.