IT WAS only a light workout but Collingwood's training session on Thursday held some significance because veteran defender Lynden Dunn and emerging superstar Jordan De Goey got through it unscathed.

The key pair was involved in the entire 90-minute session at Olympic Park and, importantly, easily handled the agility and change of direction work.

Magpie fullback Dunn, 31, underwent a left knee reconstruction last July and has gradually increased his workload to put himself in a good position to make an early-season return.

Powerful forward/midfielder De Goey kicked without any issues on the left foot that was sprained during match simulation on February 15 and looks set to be available for the Pies' round one clash with Geelong at the MCG on Friday March 22.

A better gauge on the pair will be Collingwood's main session on Saturday, ahead of its final JLT clash with Carlton at Morwell on Monday.

Just three days after the Magpies' first JLT Community Series game, which resulted in a 27-point win over Fremantle in Perth, several stars trained lightly or not at all.

In the latter camp were gun trio Jamie Elliott, Darcy Moore and Dayne Beams, each of whom attracted attention with strong showings against the Dockers.

The Pies' joint club champions last year, ruckman Brodie Grundy and midfielder Steele Sidebottom, jogged and kicked a ball together before leaving the track midway through the session.

Young speedster Jaidyn Stephenson appeared sore, returning briefly to the rooms before re-emerging for some individual skills when he kicked on either foot.

Tough backman Brayden Maynard didn't play against Fremantle and failed to make an appearance on the track. Veteran midfielder Daniel Wells (foot) was also a no-show.

Will Hoskin-Elliott briefly wandered among his teammates, his left knee bandaged after undergoing surgery that is expected to keep him sidelined for at least round one.

In Grundy's absence, forward/ruckman Mason Cox and rookie Max Lynch practiced their ruckwork at boundary throw-ins.