His page on Wikipedia states:
Nana Gbewonyo (born December 11, 1980) is an actor who played the role of Junior Battle in the film Coach Carter that was released in January 2005. He was born in Accra, Ghana, but moved to California when he was three with his parents. He played college basketball for Washburn University in Kansas and Henderson State University in Arkadelphia, Arkansas.
His movie credits include Gran Torino, ER, and Coach Carter. To read more about Nana Gbewonyo, visit this biography page.