Collingwood captain Scott Pendlebury will not be worried if opposition clubs step up their physical aggression against star ruckman Brodie Grundy in a bid to blunt his dominance, after St Kilda's Rowan Marshall had some success with the tactic on Sunday.

Eyes on the ball: Magpie Brodie Grundy takes on St Kilda's Rowan Marshall in the ruck. Credit:Getty Images

Marshall crashed into Grundy regularly during the Saints' 11-point win over the Pies in the Marsh Community Series in Morwell at the weekend, and even made a beeline for the star off the ball on numerous occasions.

Grundy still comfortably beat Marshall in the hitouts (34 to 18) but had less of an influence than usual around the ground.

“Yeah I think [that happens] anytime players want to try and take the mantle off Brodie, of best ruckman in the game, and every week Brodie cops that," Pendlebury said on Tuesday.