 With speculation that he was not in Marcelo Bielsa's plans, on 26 July 2018, Sacko was not given a shirt number for Leeds for the upcoming 2018–19 season for Leeds.On 30 July 2018, Sacko joined Segunda División side UD Las Palmas on a season-long loan from Leeds.He made his debut on 19 August 2018 in a 2-0 win against CF Reus Deportiu.