COLLINGWOOD has withdrawn ruckman Brodie Grundy from its team to face Greater Western Sydney on Sunday after a training scare on Friday left him with a sore neck. 

Grundy, who was taken from the Westpac Centre on a stretcher and in a neck brace on Friday, was expected to face the Giants after a CT scan cleared the ruckman of neck damage. 

However, the Pies did a backflip on Saturday morning and replaced Grundy with emergency Paul Seedsman, who was originally dropped for the clash.

Collingwood football manager Neil Balme said Grundy will need to wear a neck brace for the next week as he recovers from whiplash.

"Brodie has sustained what doctors have described as a whiplash injury and will need to wear a neck brace for a week or so to allow the injury to settle," Balme told the club's website.

"He'll miss tomorrow's match against the Giants and use the bye week to recuperate. The club doctors will reassess Brodie after that."

Grundy wasn't in any distress as he left training on a stretcher on Friday and was loaded into an ambulance.

The Pies were quick to confirm he was in a stable condition. 

He has been in brilliant form this season and has carried the lion's share of Collingwood's ruck work. He is yet to miss a game in 2015.  

His withdrawal leaves Jarrod Witts to shoulder the bulk of the ruck load against star Giant Shane Mumford. 

Sam Dwyer has also been added to the emergency list in place of Seedsman.

Below: Brodie Grundy leaving training on a stretcher on Friday