The Farrer student will turn out for the NSW CHS side at the 2018 ASSRL (Australian Secondary Schools Rugby League) 15 Years Championships next week.

Henderson has used the last month to recover from a dislocated knee cap. It was an injury the 15-year-old sustained in his second game for Greater Western at the NSW CHS trials in late May.

“I dislocated my knee cap on the corner post,” Henderson said.

“I went to tackle a fella and my leg swung around and hit under the padding and my knee cap hit it wrong and it just went out.”

The injury sidelined Henderson for the rest of the trials but the playmaker had already impressed the selectors and was picked in the CHS side.

Henderson said his knee “feels fine” after a month’s worth of rehab.

“I’ve been running and doing rehab and stuff. It’s feeling, probably, 90 per cent,” he said.

Henderson will line up at five eighth for the NSW side after last pulling on the sky blue as a 12-year-old in the NSW primary schools team.

The teenager said it felt incredible to be able to turn out for NSW again.

“It feels good. I’m very keen but I’ll probably feel the nerves when I go up there,” Henderson said.

“I’ve been working hard for it for a while now. It feels nice to finally have it [NSW jersey] back.”

The selection came after Henderson missed out on selection for NSW as a 14-year-old.

“Last year I made the Greater Western team a year young and this year I’ve gone the step further which is nice,” he said.

The 15 Years Championships will be played in Mackay at BP Print Stadium.

The first matches will be played on Sunday, July 1 with the competition to wrap up on Friday, July 6.

NSW CHS kick off their campaign against QLD Maroon on Sunday before clashing with NSW CCC on Monday.

Tuesday will be a rest day for NSW CHS before finals start on Wednesday.