Youth career Nartey began his career at the age of 8 at
AB. He then joined
F.C. Copenhagen at the age of 12. At 16 years old, he had already played for the U19 squad of F.C. Copenhagen. He played five
UEFA Youth League games.
1. FC Köln At the age of 16, Nartey joined
1. FC Köln in Germany on 31 January 2017 for about 4 million
danish krone. Meanwhile, he was not able to play until 19 April because of some problems with his papers. He only managed to play four games in that first half season for the reserve team. He got his professional debut for 1. FC Köln on 26 November 2017 when he came in from the bench with 7 minutes left against
Hertha BSC. However, it was not a successful year for Nartey, due to several knee-injuries in the 2017–18 season.
VfB Stuttgart On 29 August 2019, Nartey joined
VfB Stuttgart on a four-year deal. A day later after joining Stuttgart, Nartey was loaned out to
Hansa Rostock for the 2019–20 season. On 31 July 2020, Nartey was loaned out to
SV Sandhausen until the end of the season. ==Personal life==