Career
In 2010, Cyprus side AEK Larnaca signed Njongo Priso on a season-long loan deal, with an option to make the move permanent. On 30 August 2010, he made his debut as a second-half substitute in a 2–1 defeat of Omonia. He scored his first goal for AEK in a 1–1 draw at Ermis Aradippou on 26 February 2011.
At the end of the season, Priso joined AEK on a free transfer, however Valletta agreed to receive a percentage of any future transfer fee.
Priso moved to Bulgarian club CSKA Sofia on 19 January 2012, for an undisclosed fee believed to be around €320,000. Priso was subsequently banned for seven matches, two for a red card and five due to engaging in confrontation with local police officers in the aftermath of the sending official
The second ban was later reduced from five to two matches on appeal but Priso left PFC CSKA Sofia by mutual agreement on 12 July 2013. On 16 July 2013, he signed a two-year contract with Romanian Liga I side Football Club Petrolul Ploiești.
On 7 June 2015 Priso resigned for Valletta Football Club.