Junior middleweight Vanes Martirosyan (36-4-1, 21 KOs) is regretting his departure from Al Haymon's Premier Boxing Champions banner.
Back in 2017, Vanes was a bit frustrated with career push and made a decision to part ways with Haymon.
Vanes would eventually sign with veteran promoter Don King.
As BoxingScene.com previously reported, Vanes is on the verge of retirement from the sport, after sitting on the shelf since getting out knocked out by then middleweight champion Gennady Golovkin in May 2018. Vanes came in as a late replacement for Canelo Alvarez, who failed a drug test.
The contest with Golovkin was Vanes' first bout in two years time.
Haymon's company is flourishing at the moment, with multi-year content deals with Showime, Fox Sports and ITV.
If Haymon decides to open his door, Vanes would love to return to the PBC stable.
"The one thing I regret in my career is bad-mouthing Al Haymon because I have nothing bad to say about him, I was just upset with the people in the company that were not treating me right and I took it out on him," Vanes told On The Ropes Boxing Radio.
"That was a mistake I made and if want him to know that I’m thankful for him. I’m not saying that for him to take me back, I just want him to know that I’m thankful for him. I sat back and I thought about my career and my whole life and how things went and he’s one person I shouldn’t have bad-mouthed him and I’m sorry for that.
"I don’t need an offer from Haymon. If Haymon wants to accept me back, I would go to him immediately and I would want him in my boxing life. At the end of the day, he takes care of his fighters. He took care of me also.
"His fighters make good money and a lot of people hate on the amount the fighters makes because it’s a lot of money, but they don’t know what we go through outside of boxing. The punishment we take in our brains, we are getting brain damage and I think we need to be paid for that instead of the people outside who are running the show getting more money than the fighters. That’s the thing I like about Al Haymon, that he really does care about his fighters. If he’s willing to do something, I’m ready to go."