Career
Amankwaah enjoyed successful stints at Bristol City and Swindon Town. He began his career as a trainee with Bristol City, turning professional in January 2000. He made his first team debut on 18 March 2000, replacing Matt Hewlett as a late substitute in the 1–1 draw away to Oldham Athletic and soon became a regular squad member.
Amankwaah received neck injuries in a car crash in March 2002 when he and teammate Aaron Brown were travelling in a car driven by former City trainee Rohan King which collided with another vehicle.
He was given a new two-year contract while injured, but struggled to re-establish himself at Ashton Gate after returning from injury, having loan spells at Torquay United in January 2003, and Cheltenham Town in August 2003. He eventually left Ashton Gate in February 2005, when he signed for Yeovil Town, initially on loan, and then on a permanent basis.
Amankwaah signed for Swansea City in July 2006 for a fee of £250,000. Amankwaah joined Swindon Town in June 2008.
He played 89 games for the club, scoring 5 goals before being released on 31 August 2011.
Amankwaah still had 6 months to run on his contract when he was released. On 2 July 2012, Amankwaah signed for League Two side Exeter City on a free transfer. On 30 April 2013, he was released by Exeter along with 3 other players after the expiry of his contract.
After a successful trial with Northampton Town, Amankwaah signed a one-year contract with the option of a further year on 29 July 2013.
He made 24 appearances for the Cobblers before having his contract terminated on 23 January 2014. On 17 February 2014, Amankwaah signed for Conference Premier side Salisbury City.
Amankwaah was at the centre of controversy when he made a remark to Milwall player Neil Harris, taunting him about his battle with testicular cancer during a match between Millwall and Swindon. Amankwaah then apologised after the game after his remark was made public, and also made a donation to Everymans Cancer Charity.
Harris accepted the apology at first but then withdrew his acceptance after Amankwaah tried to justify his claims for making the remark.
