Dávid Hancko started his professional career in MŠK Žilina, where he played a centre-back during the 2017/2018 season. He moved to Fiorentina in the summer 2018 thanks to his good performances. He didn’t get to the team and played just 5 matches. In the summer 2019 he came for a one year loan to Sparta. In 2020 the loan with an option was extended.