Born in London, Masampu is of Nigerian descent. He started his career with the Metropolitan Police Football Club, and was voted youth team player of the year in 2017. Due to his good performances, he was scouted by Premier League giants Chelsea, who invited him on trial. After impressing on trial, Masampu completed the shock move alongside other non-league players Adebambo Akinjogbin and Tushaun Walters.
Following two seasons with Chelsea, in which he featured sparingly, Masampu was initially set for release in June 2018. However, he signed an extension to his short-term deal in July 2018, and was featuring for the club’s under-23 side in September of the same year.
Following his eventual release from Chelsea in 2019, Masampu would go on to join non-league Whyteleafe. However, he did not stay long, and was playing for National League South side Dulwich Hamlet in 2020.
On 15 November 2021, Masampu eventually joined Birmingham City on a deal until June 2022, following a successful trial period.
- As of 1 November 2021.
- Appearance in the Alan Turvey Trophy