Antonio Donnarumma 's brother was called `` Gianluigi '' .
Due to injuries to both Milan 's first choice keeper and Donnarumma 's brother , Gianluigi , as well as the club 's second goalkeeper , Marco Storari , Antonio made his Milan debut on 27 December 2017 against Inter Milan in a Derby della Madonnina match in the Coppa Italia , keeping a clean sheet over 120 minutes in a 1–0 victory after extra time .
Antonio Donnarumma