Born in Accra, Ghana, Mustapha began his career with Eredivisie side Vitesse as a youth and senior player.

[1] While with the Vitesse youth team, Mustapha actually worked under his future head coach at Sparta Rotterdam and Pune, Mike Snoei.

[2] Mustapha stayed at the club till 2008 when he signed for Bolton Wanderers of the Premier League in England as a replacement for the departing El Hadji Diouf.

[3] However, after 2+1⁄2 seasons of failing to make an impact at Bolton, Mustapha was released by the club in January 2011 and eventually signed back in the Segunda División for Cartagena.

[9] Despite being born in Ghana, Mustapha has in the past represented the national youth teams of the Netherlands for over 90 times, making him one of few to have reached that mark.