 Complete the following phrase:  On 15 May 2018, it was announced that Reina would move to Serie A rivals A.C. Milan on a Bosman transfer. The deal was officialized on 2 July 2018 and he signed a three-year contract with the Rossoneri. He made his debut for the club in the Europa League on 20 September, in a 10 away win over F91 Dudelange. Although he served as back-up to Gianluigi Donnarumma in Serie A during his first season with the club, he was the clubs starting goalkeeper in the Europa League during his first season with the team, making six appearances, as Milan suffered a firstround elimination. He made his 