[8][7][9] He later went back to pursue a Master of Philosophy (MPhil) in Health Physical Education Recreation and Sports at the same university completing in 2020.
[10][7][11] Manomey played colts football in Ghana before securing a move to Ghanaian giants Accra Hearts of Oak.
[6] Manomey joined Accra Great Olympics in January 2017, ahead of the 2017 Ghana Premier League season.
[23][1] On 16 November 2020, he made his debut, coming on in the 72nd minute for Ali Huzaif in a goalless draw against International Allies.
[24] Manomey played for the University of Education, Winneba (UEW) football team on both occasions whilst studying for his degree and masters.
[7] He played a critical role in the team's performances in the GUSA (Ghana Universities Sports Association) games.
[21] He was the top scorer of the GUSA 2020 games hosted by the University of Ghana, Legon after scoring 10 goals in 10 matches.