Greenwood has now jumped at the opportunity to make the switch to No.1 after its previous owner, Jack Mahoney, was delisted by the Kangaroos last month.

The 31-year-old this week explained why the number is so significant to him and his mother’s memory.

“When mum was diagnosed with terminal cancer, her life goal was to make every second count, and she started a fundraising campaign called ‘Seconds Count’,” he said.

“So, the idea is whenever I come into work each day and see the No.1 in my locker, or whenever I pull the No.1 on, it reminds me to make every second count.”

Greenwood’s change came as the Roos handed out all of their new numbers in a jumper presentation, including to top draftees Colby McKercher and Zane Duursma, who will wear numbers seven and 10, respectively.

Duursma and McKercher have joined Taylor Goad, Will Dawson and Riley Hardeman as first-round draftee additions to Arden Street, and Kangaroos co-captain Jy Simpkin has been amazed by how the club’s next generation have immediately stamped their mark.

Now one of the older players at Arden St at just age 25 following the departures of Todd Goldstein, Jack Ziebell, Ben Cunnington and Ben McKay, Simpkin is buzzing.

“Over the last few days, the young boys haven’t been here for long, but you see ‘Colbs’ (McKercher) and ‘Zano’ (Duursma), their skills on the track it’s like ‘s***, I wasn’t doing that when I first come into the club’,” Simpkin said on Wednesday.

“Big Will Dawson in a bit of matchplay the other day, he really caught my eye the way he just floated across the halfback and then was hitting kicks up the middle, I was like ‘s***, these boys can play’.”