Masoe left Saints at the end of the 2015 campaign, to return to the NRL with the St George-Illawarra Dragons.
Now undergoing preseason at his new club, Masoe has realised that he needed the extra motivation that moving to England gave him.
“Going overseas made me realise what I could have done over here,” he told reporters Down Under.
“And there is unfinished business. It is driving me.
“I have got to make the most of this opportunity. I still think I can produce my best footy.”