Brumbies flanker David Pocock has been cited for an act of alleged foul play during his side's loss to the Chiefs on Saturday night.

Chiefs No 8 Michael Leitch might have been the victim of an alleged neck roll from David Pocock but wasn't making any fuss after the game in Canberra on Saturday night.

Brumbies openside flanker Pocock is in hot water after allegedly grasping the neck of Leitch during the Super Rugby match, which the Chiefs won 48-23.

The incident is alleged to have happened during a maul in the 74th minute of the game at GIO Stadium, and left Leitch rolling on the turf in pain.

No action was taken on the field, but upon reviewing footage from the game, the citing commissioner has judged the incident to have met the threshold for a red card.

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The laws Pocock is alleged to have broken are 10.4 (e): Playing a player without the ball is dangerous play; and 10.4 (m): Acts contrary to good sportsmanship.

The incident will first be considered by Sanzaar's duty judicial officer Adam Casselden.

For it to be dispensed with at this stage, Pocock must plead guilty and accept the penalty Casselden offers.

Chiefs coach Dave Rennie said he didn't see the incident - which left Leitch rolling on the ground but was made aware of it after the match.

"I didn't notice it, but the citing guy talked to us about it after the game, they approached Michael about it, he just said 'Oh, it's rugby' and he didn't want to carry it any further," Rennie said. "But the citing commissioner's made that decision. So we'll leave it in their hands."

The citing adds insult to injury for the Brumbies, who despite topping the Australian group, were outclassed by the Chiefs, conceding six tries while scoring just two themselves.

They have a bye this weekend and are next in action on April 16 when they play the Waratahs in Sydney.

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