On 20 July 2017, Serrano signed his first professional contract with
Monaco, keeping him at the club until 2020. Serrano made his professional debut for Monaco in a 3–1
Ligue 1 loss to
Guingamp on 21 April 2018. On 21 August 2020, Serrano joined
Scottish Premiership side
Livingston on a season-long loan deal. On 31 August 2021, Serrano was released by Monaco. In December 2021, he signed for
Créteil. ==References==