AFL star Dane Swan is expected to announce his retirement on Tuesday.
Swan's future has been up in the air since the 32-year-old suffered a serious foot injury in round one of the AFL season.
Collingwood have called a press conference for 1230 AEST on Tuesday, when Swan is expected to reveal he is hanging up the boots on account of medical advice.
Swan broke three bones in his foot, including a Lisfranc fracture, in the opening minutes of the Magpies' season-opening clash with Sydney.
Magpies coach Nathan Buckley refused to confirm the news on Monday night.
"I'm not telling you what he did and didn't say to me. It's his prerogative," Buckley told Fox Footy.
"He's been - no he is - a gun. An absolute gun and a champion. We farewelled a couple of our boys today, premiership players (Brent Macaffer and Alan Toovey).
"It's never easy to come to the end of a football career and let that go, because you give so much to it."
Swan, who won the 2011 Brownlow medal, has played 258 games for Collingwood.
Meanwhile, Buckley confirmed embattled spearhead Travis Cloke will be recalled for his side's clash with Hawthorn on Sunday.
Cloke has been dropped three times this year and played a total of 12 games, leading to speculation he will be traded at the end of the season.
"Clokey will play. We can't have the to and fro going through the week. It's just ridiculous," Buckley said, referencing the near-constant scrutiny on Cloke.