Despite having a challenging task preparing his team to build on last weekend's win against the Brumbies, which broke a nine-game losing streak, Sir John found time to mentor Kees on how to deal with bullies who pick on him for an eye disability.
"He took me for a walk and told me to be strong," the youngster told the Herald.
"He said no one can hold you back but yourself."
His mother, Mel Faumuina, said Kees had already taken inspiration from the Blues to be strong in the face of adversity. "He has ... learned to accept his difference."
But she said having his name on Blues jersey No1 would be a great confidence-booster for her only child.
Kees assures Kirwan that a Blues win will be a sure thing. And although he forgot to bring his team flag for players to sign at a presentation at their practice ground at Unitec, he will get to keep Tu'ungafasi's jersey as a souvenir.
Kees was among 90 youngsters whose names were drawn from a ballot in an exercise in which 10 others received jerseys through the BNZ and team Facebook pages, and 15 won Trade Me auctions which raised more than $10,000 for Plunket.
Two others at yesterday's BNZ Future Stars presentation were 3-year-old Zion Clarke of West Auckland and 7-year-old Tristan Eriksen of Glenfield. Zion's name will be on Pita Ahki's No13 jersey, and Tristan's on Patrick Tuipulotu's No5 strip.