After reporting back for pre-season training with St George Illawarra late last year, the former Australian rugby schoolboys international, was merely hoping for an injury-free season following back surgery.
The unassuming 25-year-old also re-signed with the Dragons until 2020 and admits he's achieved more than he ever could have hoped for.
"Every player has their targets at the start of the season, Origin was probably something I hoped could happen," Frizell told AAP.
"I never in a million years thought I'd be playing for Australia."
It was only a suspension imposed on Wade Graham by the NRL judiciary that opened the door for Frizell to play for NSW in games two and three.
Two all-action displays that yielded tries in each game impressed Kangaroos coach Mal Meninga enough to select him in the PM's XIII to face PNG in September and the Four Nations.
It's all a far cry from his first taste of international action with the Welsh team in 2011 where his side were on the back of a 42-4 loss to England followed up by a 36-0 humbling at the hands of New Zealand at Wembley Stadium.
"He was a very talented footballer. In training he was very professional but off the field he knew how to enjoy himself, he was great fun.
"Some of the boys were reminding me of the game we played against Australia that year.