As one group sweated it out in a tough boxing session in the warm-up area of the gym at the Ricoh Centre, the other group cycled on the excerise bikes and yelled encouragement to their teammates.
The groups then switched before heading into the change rooms to refresh before their next task.
Check out the best photos from the session below.
David Hale saw the funny side of things as the session got underway.
An alert Josh Gibson in action with his teammate-signed glove.
Taylor Duryea looks like he means business for 2015.
Shem Tatupu sweats it out on the bikes.
Jordan Lewis goes through his paces on the bikes as draftee Teia Miles wipes sweat from his face.
Marc Pittonet grabs a much-needed drink during a break.
After watching Jared Hardisty during his boxing session, Lewis stops to give the rookie some advice.
It was a tough session, just ask Grant Birchall.
The skipper, Luke Hodge in action.
After competing his boxing session, Ben McEvoy hits the bikes.
Jonathan Simpkin is ready to go.
Luke Breust holds the boxing pads for teammate and fellow premiership player, Will Langford.
