"I was frustrated and a bit down," said Watene-Zelzniak. "I did feel like going back home and just sitting in my room and staying there but I had time to ponder and think. [I realised] that people have it a lot worse than me and I still find myself lucky."
It's the second time in six months that the teenage winger has seen his international dreams dashed, after missing the entire 2014 Four Nations campaign following a training injury on the second day in camp last year. But Watene-Zelzniak is philosophical about his fate.
"A lot of people say I am unlucky," said Watene-Zelzniak. "But to be where I am at my age playing a sport I love and living my dream I think I am fortunate."
But it still feels like he is an unnecessary victim, like many other Kiwi players before him, of the NRL's unusual blanket bans for offences committed in club matches.
"I would love to play on Friday but rules are rules," said Watene-Zelzniak. "It was probably the worst timing for it and that could be something they could think about."
Fortunately, Watene-Zelzniak has time on his side, and he has already been reassured by Kiwis coach Stephen Kearney that he will remain in his plans for the end of year tour to Great Britain.
"[Playing for the Kiwis] has always been a goal," said Watene-Zelzniak. "It has fallen short twice now so I will just have to keep doing my job for Penrith."