Collingwood coach Nathan Buckley says it was good to get one back on West Coast, but the Magpies will now be sweating on Darcy Moore's latest soft tissue injury.
The Magpies broke a run of four straight losses to West Coast with a pulsating one-point AFL win at Optus Stadium on Friday night.
Collingwood held West Coast scoreless from the 10 minute mark of the third term until the 26 minute mark of the final quarter.
The 11.12 (78) to 12.5 (77) win saw Collingwood leapfrog West Coast into second spot, with both teams now boasting 11-5 records.
But the triumph came at a cost, with Moore injuring his left hamstring in the opening term.
Moore was plagued by soft tissue injuries last year.
Although Buckley thinks the latest setback isn't serious, Moore's injury history means Collingwood will need to take a cautious approach.
"It's not a big one - not a big whack. We think it's a slight hamstring strain," Buckley said.
"As every other player understands, that will take some time. He has put a solid block of footy together and we think he will get back in good time."
Should Collingwood meet West Coast in the finals, they will enter the match with the knowledge they have what it takes to beat the defending premiers - even if the game is held in Perth.
Brodie Grundy's mammoth final quarter helped lift Collingwood over the line, with Brody Mihocek (four goals), Jordan De Goey (22 disposals, two goals), and Adam Treloar (39 disposals, seven clearances) also playing vital roles.
Buckley felt his team regained their mojo during the win, and said it was important to taste success against their grand final conqueror.
"If you are just looking at just our battles, it was good to get one back," Buckley said.
"And the way the game was played, we looked at doing some things differently and some of them worked for us.
"I suppose to right the ship and have us head back in a direction that we believe we are on, to get the win tonight was critically important for the momentum of our season."
Buckley's decision to play Chris Mayne as a defensive forward on Shannon Hurn worked well, with the Eagles skipper restricted to 17 disposals and three marks.
"We have lost recent games against West Coast, and you can't expect to do the same thing and expect a different result," Buckley said.
"That's madness. We changed a few things around and some we'll continue with and others we'll go again."
Australian Associated Press