Matthew Kreuzer's failure to satisfy Collingwood's medical team that his body would justify the massive four-year contract the Magpies had put on the table appears to have had a domino effect across the forthcoming trade period.

The Magpies have withdrawn the reported $2.4 million deal put forward to the Carlton ruckman, a contract offer  that had the Blues lining up for a generous compensation pick that could have become pivotal in the Magpies' Adam Treloar agreement. Kreuzer now seems almost certain to stay with the Blues.

Greater Western Sydney have also shown interest in Collingwood ruckman Jarrod Witts, who has insisted upon remaining with the Pies and is contracted.  That insistence also played a part in the Kreuzer back-off.

The massive six-year offer put forward to Treloar has been placed at about $750,000 a season. Although both clubs refused to reveal the potential details of the agreement between Collingwood and GWS, the AFL has maintained a close watch on the forthcoming trade, which raised the ire of Richmond.

The AFL has denied its enhanced investigation capacities achieved in-house were put to clubs following reports of the Treloar deal with Collingwood.

"It's pretty simple," club president Eddie McGuire told Fairfax Media. "The kid wants to come to Collingwood."

McGuire scoffed at industry scuttlebutt, which  reached the highest levels of AFL headquarters, that he had offered Treloar's partner, Kelsey, a position with McGuire Media.

"If that was what she wanted and we had arranged it, it would have gone to Ken Wood and been ticked off under the TPP," said McGuire. "But it's categorically wrong. It's not happening, never was. I can't even get Dane Swan to do a spot on my radio show for $150 without it being queried."

The Tigers offered the Giants two first-round draft picks for Treloar and believed that Richmond was his club of preference. List manager Blair Hartley has remained in contact with the talented young midfielder while the issue was taken to the chief executive level when Brendon Gale contacted Dave Matthews to query the GWS rebuff.

Carlton have  made two offers to Kreuzer this season and insist they want to keep their previously highly prized ruckman. The second, improved contract offer put to him was a highly conditional three-year agreement in late August. That guaranteed the 26-year-old about $1 million, but was worth significantly more should he play the majority of games over the next three seasons.

Kreuzer played 13 games in 2015 after managing just one last year.

The Blues believe Kreuzer was also tested by the Western Bulldogs and was unable to satisfy that club of his full fitness.