There was no long weekend for the North players, who battled the Australia Day heat to take part in a match simulation.
The Roos' VFL team were also in action, with every player leaving nothing in the tank.
Among those to impress during the session were 2017 Syd Barker Medalist Shaun Higgins and fellow midfielder Ben Cunnington, while Shaun Atley was brilliant with his run and carry and around the goals late.
Jy Simpkin enjoyed a run through the midfield and was hard at it, while Paul Ahern looked like he hadn't missed a beat, despite missing almost 18 months of football. His class with ball in hand was a highlight on the day.
Check out the best photos from the day below.
Paul Ahern in the midst of a look-away handball.
Todd Goldstein holds front position against first year player Tristan Xerri.
Billy Hartung finds himself in plenty of space as he moves the ball forward.
Shaun Higgins shows off his class as he escapes the pack with the ball.
Alex Morgan looks to evade his opponent who is hot on his tail.
Jarrad Waite looks to find Jy Simpkin's inside 50.
Will Walker gets a quick handball off in a heavily contested situation.
Forward Cam Zurhaar finds the ball and looks for a handball.
Shaun Higgins and his teammates spent much of the breaks keeping cool on what was a hot Melbourne day.