GAA fans were divided on David Coldrick's decision to send Armagh's Greg McCabe off against Galway.
The Orchard County man was shown a red card for a shoulder challenge on a Galway player.
Many supporters believe that it was the right decision, but others think he should have stayed on the pitch.
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One said: "It was a red alright. Thought black on first look but just the speed of it. Was out of control. I don't think Armagh have been dirty though."
Another commented: "It's a clear red unless you are a biased Armagh supporter. Very dangerous."
Someone else said: "There can be no doubt about that red card for Armagh."
Of those who thought it was the wrong call, one wrote: "No Chance that was a Red card ball was in Hand and a shoulder challenge was made."
Another tweeted: "Red card?! Wow, very very harsh decision."
Someone else said: "Definitely didn't look like a red card to me."
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