Trainer Tony Sims admits Anthony Joshua was ill-disciplined against Dillian Whyte and needs to learn from the experience.
With the British and Commonwealth heavyweight titles on the line, Joshua (15-0-KO15) stopped Whyte (16-1-KO13) in the seventh on December 12 but was rocked for the first time in his professional career in the second round.
Prior to that, the bell for the end of the first round failed to prevent the fighters exchanging punches - sparking an ugly melee with entourages entering the ring - but Sims has dismissed suggestions Joshua has a problem with discipline in general.
He told Sky Sports: "I don't think so. I really don't. It was hard to hear the bell. It was an amazing crowd and very loud in there. I don't know if anyone heard it. There was one punch after the bell.
"He got carried away in the first round anyway but it's all a learning experience. There are still a lot of things he's got to learn and that was a great night for learning.
"I think the first couple of rounds, Anthony got carried away with the build-up. He had a lot more on the line than boxing that night - there'd been a lot of talking behind the scenes. I think he wanted to prove he's not just a boxer but a fighter as well.
"He forgot his boxing in the first couple of rounds but when he got back to his corner, he got back to the boxing, back to the jab and when he went back to his boxing in that third round - from that round onwards, he walked away with the fight really.
"The whole build-up to the fight, there were a lot of personal things said. Anthony took them on board. The crowd and the build-up, I think he wanted to come out and have a fight in the first round and it didn't really matter what anyone said.
"That's another learning night for him. He's got to stick to his boxing, using a cool brain and do what he does best. If he'd have come out and boxed from the first round, he could've made it easier for himself.
"He got caught in the second and hadn't been caught like that before. That was another learning thing for him. Then he came through that, pulled himself together and from the third round onwards, I thought he controlled the fight."
Sims also provided a bulletin on the future of Kevin Mitchell, who was shocked in the fourth round by Ismael Barroso in a WBA world lightweight title eliminator.
Sims said of the Dagenham fighter (39-4-KO29): "He's back in the gym training. Sometimes you have a bad night at the office. There were a few things in the build-up that he never did right. That's his own fault.
"Take nothing away from Barroso though. He was better than I thought - his movement, hand speed and obviously power is good. There was nobody notable on his record but Kevin said his power was unbelievable.
"Kevin still wants to fight so he'll pick himself up, dust himself off and come again."