[2] Fosu-Mensah's youth career began with Zeeburgia, before he had spells with AFC, Argon and Almere City.
[2] Upon leaving Oss, he also left Dutch football and moved to the UK to join his brother Timothy and agreed to sign for English National League side Southport.
[10] After three appearances for Hednesford, Fosu-Mensah departed to join fellow NPL Premier Division team Marine on 3 March.
[13][14] On the following Saturday, Fosu-Mensah scored a hat-trick in his first start for Airbus UK versus Holywell Town in a 2–5 win.
[19] He was released by Llandudno in November, which preceded him signing for England's NPL Division One West club Widnes in December.