The New Zealand Rugby Players Association has established a trust fund for Jonah Lomu's two children.
The All Blacks legend, who had spent years dealing with a kidney disease, died of a suspected heart attack last month at the age of 40.
Lomu, who played in 63 Tests for New Zealand, was survived by his wife Nadene and two young sons Dhyreille, six, and five-year-old Brayley.
It has been confirmed that the Jonah Lomu Legacy Trust, which was not requested by the family, will provide support for the late rugby star's children after it was discovered that Lomu had money problems.
Chief executive Rob Nichol said: "While the probate of the estate will take some time, we know enough to realise that the family will not be able to rely on any financial proceeds or ongoing financial benefit.
"It is also apparent that his 20-year illness and long dialysis sessions, multiple times a week affected him far more than people realised, including his ability to work and earn the type of money people probably assumed he was capable of earning."
The trust will provide an education and pastoral care for Lomu's sons.
