A few years ago, Ronda Rousey was the biggest star in mixed martial arts, while Floyd Mayweather was the biggest star in boxing.

The two of them had a minor feud in the press, because Mayweather claimed during an interview that he was unfamiliar with Rousey and actually thought she was a man.

Fast forward to the present, Mayweather is retired from boxing and Rousey is retired from MMA.

While Rousey signed a very lucrative contract to become to a performance in WWE, Mayweather is exploring the possibility of fighting in MMA.

 Last week, Mayweather said he was going to apply for an MMA license at some point in the future - and just this past weekend, UFC welterweight champion Tyron Woodley announced that he and Mayweather would beginning his MMA training this week.

Speaking with FightHype.com recently, Mayweather discussed his plans and said the odds of him actually fighting in the cage are 50-50.

“I started training already,” said Mayweather. “Not the physical part, just the endurance part. I’m thinking about fighting in MMA. I’ve thought about it. I started training in Miami. I look forward to fighting probably at the end of the year. We don’t know. Right now it’s 50/50, it’s not 100 percent but I’ve already started training. . . I really don’t know yet but I’m very, very interested. We’ll just see. Everything takes time. Everything takes time.”

Mayweather retired from boxing last August after stopping UFC superstar Conor McGregor in the tenth round of a boxing match. The win took his record to a perfect 50-0.

“I know right now I’m the biggest name in MMA, hands down,” claimed Mayweather. “I know this. And the second biggest name is Conor McGregor. I know this.

“It’s all about entertainment. I love having fun. The first two or three rounds, I wasn’t even doing anything, I was letting him do what he do. But in MMA it would be totally different because we don’t have no shoes on and with four-ounce gloves on - you think I’m fast with eight-ounce gloves on, imagine how fast I’d be with four-ounce gloves on.”

But, Rousey says there is no way that Mayweather will ever enter the cage.

“Yeah, that’ll never happen,” Rousey said to Mike Golic. “It’ll never happen. It’s all talk.”

She continued: “Different strokes for different folks, but I don’t think he’d do well in MMA at all.”