The 20-year-old had only joined the Puritans in June 2021 from AFC, who he originally signed for in October 2020.

He joined the MK Dons' academy at under-9 level, progressing through various age groups and into the club's development squad, eventually going on to captain the club's under-18s.

In September 2018, whilst still an academy player, he featured for the first team against Peterborough United in an EFL Trophy group stage fixture.

Following a spell on loan with AFC`s league rivals Welwyn Garden City, Pattison signed professional terms with the Dons in June 2019.

During 2019/20, he enjoyed short spells on loan with Southern Premier Division Central sides Kings Langley and Biggleswade Town.

However, at the conclusion of the campaign, Pattison was one of nine players released from the Dons.