Chantelle Cameron's trainer Jamie Moore expressed his frustration with referee Roberto Ramirez Jr after his fighter's defeat to Katie Taylor in Dublin on Saturday night.
The Irish fighter won the bout by majority decision to avenge her defeat to Cameron earlier this year and become a two-weight undisputed world champion.
"She's obviously devastated, as you can imagine," Moore told BBC 5 Live's Boxing with Steve Bunce podcast.
"She just feels like this whole scenario, this whole thing was set up for her to lose. We were determined to prove everyone wrong, similar to what we did last time.
"[Katie Taylor] got away with holding a lot the last time. First of all, from what I was actually watching, it was a close fight and could have gone either way. We were denied a knockdown in the first round, which should have been [allowed]. 100 per cent a legitimate knockdown.
"I begged the referee in the changing room before the fight... I said 'Please, last time, she got away with holding a lot. My fighter's best work is up close. Please don't let her hold the way she did the last time'. He allowed it to go on worse this time.
"I'm gutted for her. She was so frustrated by the fourth and fifth rounds because [Katie Taylor] was holding that much. From watching what I watching, I know that if Chantelle was allowed to do the work that she can do on the inside, it would have been a different result."
Moore said that Cameron suffered a "very bad cut" during the fight.
"I was getting paranoid in between rounds," he added, "because the doctor was getting up and having a look. I was like, 'The cut man is the best in the world and there's nothing wrong, it's not in a dangerous position, just leave it alone - are you trying to stop the fight?'"