Both managers were angry with referee Simon Mather after Oxford United beat Bristol Rovers 2-1 at the Kassam Stadium in a match that saw three red cards dished out.
Rovers had Jevani Brown dismissed for two yellow cards midway through the second half, and Oxford had two of their substitutes, Oisin Smyth and Stan Mills, sent off in stoppage time.
Billy Bodin and Sam Long scored the goals which secured Oxford’s fifth successive Sky Bet League One victory, despite Aaron Collins’ late consolation.
United head coach Liam Manning said: “It was chaos at the end. I need to see the Mills one back again before I say anything about it because my initial decision is that it wasn’t a red card.
“I was delighted with the win, but I’m not happy with the end.
“We made it hard for ourselves with some of our decisions on the ball and not putting chances away, and we need to be more disciplined – that’s something I’ll have to look at.
“I don’t really want to be talking about the referee, I’d much rather talk about the performance, but the level of refereeing performances in general is not meeting the standards we need.
“And it’s just frustrating that the outcome of some games seems to depend on the referee.
“It was a tough first half. Out of possession we ended up conceding too much of the ball. The one moment of real quality came from Billy Bodin for our goal.”
Bristol Rovers boss Joey Barton felt his side should have had a penalty and that Collins’ disallowed goal in the first half should not have been ruled out.
“I feel severely aggrieved by the referee’s performance,” he said. “We’ll get fined if I tell the truth but clearly anyone who watched that will see there was a lack of control from the officiating team for most of the game.
“I think the officials will look back at this game and, when they are debriefed, there will be a lot of things they’ll wish they did differently.
“Everyone who was here today knows we were the better side. If they don’t, then they don’t understand the game of football.
“We showed who the stronger group is. We had seven or eight missing today. Oxford are a good side on a good run but they are nowhere near as good as us.
“It would have been a great game of football had it been officiated correctly but it descended into a slightly farcical situation.
“I can’t wait to get our hands back on Oxford again at our place. It’s a team we look forward to playing. We have nothing to fear in this division.”