Keresoni has three caps for the National Fijian team making his debut against Tonga in 2008 and played again for Fiji in 2010 against Japan where he scored a try. He played against New Zealand in 2011.
As of early 2010 he signed for Guinness Premiership runners-up Saracens.
He has played for the season 2010/2011 for CA Périgueux in the 3rd level of French championship. This team will play next season in Pro D2 (2nd division).