Ma'afu was selected to the Fijian National squad in 2010. A third brother, the youngest, Apakuka, has played sevens for Tonga. The Ma'afu family made an especially interesting mark in rugby history in 2010 when the two brothers, Salesi and Campese, squared off against each other in a test match between Australia and Fiji.
He will join the Cardiff Blues for the start of the Pro12 2012/13 season. He signed to play for Nottingham R.F.C. in the RFU Championship in the 2013/14 season. He remained at Nottingham until signing for the French Pro D2 club Provence in 2015.