COLLINGWOOD youngsters sweated it out on Tuesday, putting the boxing gloves on under the watchful eye of veteran fitness coach Bohdan Babijczuk.
While the mercury hit 34 degrees at the Holden Centre, Babijczuk worked with the Magpies' first-to-fourth-year players.
Babijczuk previously worked at Hawthorn and Melbourne.
Meanwhile, time trial king Tom Phillips once again took out the 2km race on Monday, edging out Josh Smith and midfielder James Aish in third.
Defender Brayden Maynard and big-bodied onballer Rupert Wills rounded out the top five.
Phillips has dominated the time trial since he was drafted in 2015, taking over Steele Sidebottom's mantle.
The rest of the squad is due back next Monday but Chris Mayne and Levi Greenwood came back a week early to kick start their preparations for 2018.
Darcy Moore and Tom Langdon don the gloves. Picture: Michael Dodge, AFL Photos
Matt Scharenberg keeps his focus. Picture: Michael Dodge, AFL Photos
James Aish was well out of his weight division against Mason Cox. Picture: Michael Dodge, AFL Photos
Bohdan Babijczuk talks the players through his program. Picture: Michael Dodge, AFL Photos
Babijczuk gives some feedback to young Magpie Jackson Ramsay. Picture: Michael Dodge, AFL Photos 
Darcy Moore tries to stay balanced. Picture: Michael Dodge, AFL Photos
Tom Phillips leads the way in Monday's time trial. Picture: Collingwood Media
James Aish putting in a solid run. Picture: Collingwood Media
Matt Scharenberg catches his breath after the run. Picture: Collingwood Media
Tom Phillips sucks in deep breaths after another time trial triumph. Picture: Collingwood Media
Chris Mayne back in the swing of things ahead of schedule. Picture: Collingwood Media
