He made his first steps as part of Ghana Premier League club Asante Kotoko[1][2] Coached by Serbian manager Bogdan Korak, during the summer of 2011, the team came on a tour to Serbia to play a series of friendlies and to try to impress clubs and scouts in Europe.[3]
After his contract with Metalac Gornji Milanovac expired on 30 June 2015, Ansah remained a free agent until January 2016 when he joined Serbian SuperLiga team Novi Pazar. However, he only remained with Novi Pazar for six months.
AEL
In July 2016, Owusu was tested by the Greek Superleague team AEL. He made a good appearance in his debut on the friendly match against Levadiakos and resulted being offered a contract which he accepted. During the game, he surprised AEL fans with his powerful throw in and his excellent ball handling.[4]
Orange County
During the winter-break of 2017–18 he moved to the United States and joined USL Championship side Orange County SC.[2]