The over exuberance of youth.

That’s what Canterbury prop David Klemmer puts his Good Friday stoush with NRL referee Gerard Sutton down to.

Klemmer plays his first game after a three-match suspension for contrary conduct following the ugly scenes late in the round-five loss to South Sydney, for NSW City Origin in Sunday’s match with Country in Wagga Wagga.

The NSW State of Origin hopeful said ahead of his return to football that he has put his time away to good use.

“It’s been pretty tough to be away but it has been a good chance to freshen up the body, I have been training pretty hard,” Klemmer said.

“It’s given me time to learn from my mistakes I have had plenty of time to think about what happened.

“I’m a very competitive bloke and being young and in the moment it got the best of me.”

Klemmer said he hasn’t been keen to review footage of his and James Graham’s clash with Sutton.

“I have only seen it once with (Bulldogs coach) Dessie (Hasler),” Klemmer said.

“He said you just can’t do that. He wasn’t disappointed but said you have to learn from it and take it in your stride.

“I will mature, I will definitely learn from what happened against Souths.

“I have had a couple of weeks to move on.”

The 21-year-old Klemmer made his Kangaroos debut in the Four Nations last year and played three Tests.

With a series of good performances in City-Country and in the two NRL rounds before coach Laurie Daley picks his NSW side for Origin I in Sydney on May 27, Klemmer could force his way onto the Blues bench.

“I just can’t wait to get out there for City and play footy again, I was pretty excited to get picked,” Klemmer said.

“Hopefully one day I can get in there (the NSW side).

“That would be pretty special. I have watched State Of Origin as a little fella and I can’t wait to get out there.”