Golden Boy Promotions CEO Oscar De La Hoya was never the biggest fan of Floyd Mayweather Jr.
Two of them have had animosity for over a decade.
Their bad blood came to a head in 2007, when Mayweather won a twelve round split decision over De La Hoya - in a contest that generated the second largest pay-per-view buyrate in boxing history.
Some believe the bad blood first began when Floyd had a falling out with his father, Floyd Mayweather Sr., who then went on to train De La Hoya for several years.
They even had a rocky relationship when De La Hoya's company co-promoted Mayweather's fights from 2007 to 2014.
According to De La Hoya, he was simply never a fan of Mayweather's fighting style or his verbal antics to promote fights.
Now both of them are promoters and handle their own stable of fighters.
De La Hoya is not a fan of Mayweather's business tactics. He believes Mayweather has taught his fighters, and others, to take the easiest fight for most money - which created a huge wave of uneven fights in recent years.
“I think – I personally think as a promotor, (Mayweather) has not been good for boxing,” De La Hoya told USA Today. “Because fighters now are thinking all about business and not thinking about the fight. And not thinking about the fans."
After two years of retirement, Mayweather is returning for one night only - when he faces UFC superstar Conor McGregor in a boxing match on August 26th.
The fight, according to nearly every expert in boxing and MMA, will be a mismatch - but Mayweather stands to make over $100 million for the contest.
De La Hoya says Mayweather had a small following when he was competing under the "Pretty Boy" moniker, but once the unbeaten fighter changed his persona to "Money Mayweather" and played the role of a trash talking villian - his career exploded.
“When he was fighting on my undercards, I believe Bob Arum was promoting him at the time, and I really didn’t know of him,” De La Hoya said of the early part of Mayweather’s career. “He wasn’t really making any kind of noise or progress in terms of market value. So when I fought him he decided to play the villain, which made a huge difference.
“So I guess he figured it out, by playing the villain he can stir up some things and create attention for himself. But my thinking is that it’s just not my style. Sugar Ray Leonard did the same thing without talking trash and by conducting himself in a positive way.
“There are a lot of fighters who have not used that system that Mayweather uses. It is just not my cup of tea.”