With a number of different activities set up, the players paired up to attack each for short, sharp stints before moving onto the next set.
The players completed each station twice.
Defender Ben Stratton said it was a tough way to end the day but was ultimately another good test to get the group ready for season 2014.
Paired with Ryan Schoenmakers, Stratton said they like to push each other to the limit.
"We just try and beat each other up and push each other so by the end of it we're just stuffed," he said.
"The boys were pretty cooked at the end. It was a tough way to end the day but it's more just that unity stuff as well because we all cheer each other on."
View photos from the circuit below.
Ryan Schoenmakers gets ready to throw the medicine ball during the circuit.
Dayle Garlett has been working hard this pre-season and today was no exception.
David Hale concentrates during the session.
International Rookie Shem Tatupu shows off his guns.
Draftee Billy Hartung keeps his focus.
Schoenmakers puts everything into his training.
Youngster Tim O'Brien looks to be adding size to his frame over the summer.
Grand Birchall shows the strain on his face, it was a tough circuit!
Ben Stratton stays focused.
You'll be hard pressed to find a player who works harder than Sam Mitchell.
