Ansah had spells with Sydenham Sports club and Charlton Athletic before joining the academy at Arsenal at the age of 10.

He made his way through the Gunner`s youth system, making his debut for their under-18 side at the age of just 14.

He represented England at both under-16 and under-17 level but then committed his international future to Ghana.

Ansah was named as a sub for Arsenal's Champions’ League group stage match against Olympiacos in December 2012 but at the end of the 2013/14 season, he parted ways with Arsenal.

He subsequently joined Charlton Athletic on a two-year deal and spent periods on loan with Plymouth Argyle and Newport County, where he made 13 appearances and scored 2 goals.

In August 2016, Ansah joined National League side Woking, but a long-term injury kept him out of the Cards side and he totalled 11 appearances and one goal.

He had a spell out of Saturday football before joining Hythe in 2017/18.

After totalling 46 goals in 55 games, Ansah agreed a new one-year deal with Hythe but was released by them at the end of the season because he still wanted to play football for YouTube Sunday side SE Dons.