AFL club Collingwood and Brisbane's Brownlow Medallist Simon Black are facing disciplinary action as the issue of players making contact with umpires reaches boiling point.

Collingwood has been issued with a "please explain" and faces a possible fine from the AFL over the club's now-discredited accusations a field umpire pushed one of its players during a match.

And Brownlow Medallist Black is one of two players ordered to the AFL Tribunal on Tuesday night for recklessly making contact with the same umpire, Scott McLaren.

The AFL has cleared McLaren of any wrongdoing over contact made with Collingwood midfielder Shane O'Bree during the Magpies' clash with Brisbane at the Gabba last Friday night.

But Collingwood will be asked to explain comments allegedly made by its officials to various media outlets about the incident.

AFL football operations manager Adrian Anderson said on Monday the league had concerns over some comments made by the Magpies, and would discuss them at a previously scheduled meeting with the club on Wednesday.

Anderson would not rule out fines for the club.

"We do have some concerns over some of the comments that have been made, and conduct from the Collingwood football club on the weekend concerning umpiring," Anderson said.

"We'll be seeking an explanation. We think some things have been said and done over the weekend that concern us."

Collingwood did not lodge any official complaint over the incident, in which McLaren's arm appeared to lightly brush O'Bree as the two crossed paths during the match.

But the issue was heavily discussed in various media outlets at the weekend.

The Magpies' allegation came a week after Collingwood lost defender Heath Shaw to a one-game suspension for making contact with field umpire Michael Vozzo.

While Shaw's charge was for intentionally making contact, reckless and negligent contact with umpires is reaching epidemic proportions.

Black and Port Adelaide defender Matt Thomas are the latest to find themselves hauled before the tribunal for bumping into umpires during matches.

Already Shaw, the Western Bulldogs' Ryan Hargrave, Sydney's Brett Kirk and Jarrad McVeigh have fallen foul of authorities this season over umpire contact.

Meanwhile, Western Bulldogs forward Jason Akermanis faces a one-match ban for tripping West Coast's Mark Nicoski during the Dogs' defeat in Perth on Sunday.

He has until Tuesday morning to decide whether to fight the charge at the tribunal.

But Fremantle's Byron Schammer, St Kilda's Leigh Montagna and West Coast's Will Schofield have all been offered reprimands - Schammer for front-on contact, Montagna for striking and Schofield for tripping.

A match-day report against Melbourne defender Matthew Warnock for striking Richmond's Tom Hislop was also thrown out.

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