As previously reported, middleweight champion Claressa Shields was recently training at the Mayweather Boxing Club in Las Vegas, which is owned by former five division world champion Floyd Mayweather.

Shields is going to make her UK debut, as a pro, on Saturday night. She will make a mandatory defense, staking her WBA, IBF, WBC titles, against Ema Kozin in Cardiff.

For some time, Shields has been engaged in a war of words with British fighter Savannah Marshall, who holds the WBO middleweight strap.

Should Shields win her upcoming fight, she will be in line to face Marshall in the summer.

Marshall defeated a younger Shields when they were amateurs - which to date is only loss the two-time Olympic gold medal winner suffered in a boxing ring.

Shields revealed that Mayweather gave her words of advice on how to deal with a UK crowd.

Because of the rivalry with Marshall, there is a very good possibility that Shields will get some heat from the local fans in attendance.

"Floyd told me I was going in the right direction, said Shields to Sky Sports.

"Not a lot of US fans get to have the experience of going to see what fans in the UK are like. He told me a lot about his experience fighting Ricky Hatton. We talked a lot about my skills, but also about the difference between amateurs and pros. In the pros you really have to stay calm and take your time. Even in two-minute rounds, he was telling me to slow down and really see those shots coming.

"The opportunity with Mayweather just kind of presented itself. Floyd heard I was coming and he opened up his gym to me and my team. It was great to see him spar and be in his presence. It was great to talk to him too and really see what he's like. It's great to hear that he's a huge fan of me and that him and his kids like to watch my fights. It was a great experience overall."