Boruc (right) is shown a yellow card by referee Willie Collum
St Mirren manager Gus MacPherson believes visiting goalkeeper Artur Boruc should have been sent off in the Buddies' 3-1 defeat by Celtic.
Boruc was booked for a reckless challenge on Saints striker Craig Dargo when the match was still goal-less.
MacPherson said: "At first showing, I would say if an outfield player makes a challenge in that manner, I think most of us would be expecting a red card.
"I don't think it should be anything different for a goalkeeper."
The incident took place outside of the box on the right hand-side of the pitch during a good spell of pressure for the home side.
"I'm not saying it was a goalscoring opportunity, but just for the challenge in itself I think it could have been a red card," added MacPherson.
Celtic boss Gordon Strachan admitted that his keeper could have been dismissed - but not for denying an obvious scoring chance.
"The guy's going away from goal with two defenders getting in behind," he said.
"It could've been a dangerous tackle."
However, Strachan was unhappy that the Boruc incident had overshadowed what he viewed as a sublime finish by Shunsuke Nakamura for Celtic's second goal.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.
Bookmark with:
What are these?