Nana signed with Virginia Tech out of Notre Dame Prep in Kensington, Maryland.

[3] At Delaware, he was a three year starter for the Blue Hens after sitting out the first several games of his sophomore season due to NCAA transfer rules.

[10] He later returned to Poland to join Polonia Warszawa for the 2009-10 season and since then he remained with the club.

Nana joined the Cameroon national basketball team following the country's qualification for the FIBA World Olympic Qualifying Tournament for Men 2008.

He averaged 9.6 PPG and 5.7 RPG for the team as they narrowly missed out on qualifying for the 2010 FIBA World Championship after losing the bronze medal game.