There’s simply no stopping Brent Harvey.

While most players in their 30’s are edging towards the twilight of their careers and prefer to ease into the pre-season, Harvey is different.

At 37, his pre-season preparations have already begun, some three weeks before he is required back at Arden Street.

On Thursday, Harvey posted a comment on his Facebook page, aptly titled ‘Wish me a happy 21st… pre-season!” and with that, a three-minute video begun, showing the 409-gamer working to exhaustion at a local boxing gym in his hometown Preston.

“This really kicks it off. It feels like a pre-season again,” Harvey told fans in the video.

“You can run around the oval … but when I come here I know pre-season and the hard work is just about to start.”

PRESS PLAY above to watch the video.

Harvey will join the remainder of his senior teammates on December 1 as the players officially return for pre-season training.

A select group will be in Utah a week earlier to kick-start their preparations.