COLLINGWOOD star Taylor Adams remains under an injury cloud for round one after failing to train on Friday.

The important midfielder had pulled up sore before half-time in the Magpies' final hitout in the Marsh Community Series against St Kilda at Morwell on Sunday.

Adams had felt for his groin while receiving treatment, which raised fears he'd suffered a similar problem to the one that sidelined him for 10 weeks last year, but Pies coach Nathan Buckley insisted post-match he'd simply "jarred his hip" and had wanted to play on but had been overruled.

As his teammates were put through a two-hour session at Olympic Park on Friday – a week out from Collingwood's scheduled round one clash with the Western Bulldogs at Marvel Stadium – Adams merely walked three laps with football operations coordinator Shannon Collins.

A positive sign was the manner in which he handled two loose balls that happened to bounce his way. Despite not having the benefit of a warm-up, he showed reasonable flexibility to kick one across his body with his left foot before firmly soccering the other off the ground with his right.

The 26-year-old, who is entering his first season as a joint vice-captain of the Magpies, missed the opening two rounds last season with a finger tendon injury.

There was another scare for the Magpies when defender Matt Scharenberg remained prostrate for more than a minute after being nudged out by big man Mason Cox in a marking contest in match simulation.

Given Scharenberg's horrid history of knee injuries there were a few anxious moments as he was attended to by the medicos, but he soon got to his feet and walked from the field unassisted, though gingerly, holding his left side.

Every Magpie trained in some form with the exception of skipper Scott Pendlebury, who was given the session off after another big pre-season for the 32-year-old champion.

Gun midfielder Adam Treloar stepped up his recovery from a hamstring strain, completing the warm up, some light ball work and a power of running over a 90-minute period, but still appears unlikely to be ready to face the Bulldogs.

Key forward Ben Reid, who tweaked an ankle in the first official pre-season game against Richmond, ran by himself, as did youngster Nathan Murphy, who seems to be nursing a sore left shoulder.

Veteran defender Lynden Dunn, who was recently signed as a pre-season supplemental selection, trained fully in his bid to return from a second successive knee reconstruction. At one point Dunn was even matched up on agile forward Brody Mihocek in match simulation.

Fellow backman Levi Greenwood is in ripping shape as he makes rapid progress from an anterior cruciate ligament tear in the qualifying final win over Geelong just six months ago. He ran with forward Travis Varcoe, who is nearing a return to the main group after a shoulder reconstruction.

FULL AFL INJURY LIST How many weeks will they miss?

Tom Langdon continued his light running program and looks a considerable way off joining in with training as he deals with a potentially career-ending knee injury.

The Magpies had originally planned to hold an open training session on Friday night as part of a '2020 Kick-Off' event, but those plans were shelved amid coronavirus fears.

On Friday, the Glasshouse Café, which looks onto Olympic Park, displayed signs that announced it was "closed until further notice", while a security guard patrolled a "NO ACCESS" barrier to ensure a greater buffer zone between the public and Pies players, coaches and staff.

Many other football club employees were working from home.