Jeff Mayweather Highlights His Most Talented Protege

American coach Jeff Mayweather has singled out the most talented boxer he has ever worked with.

"I would definitely say it's Celestino Caballero. I won a world title with him. Shannon Briggs is also one of the most talented heavyweights in history, and you probably don't know Sultan Ibragimov.

But I think Celestino was a bit different from all the guys I've trained. He was 55 kg, 183 cm tall, but he fought as if he was a smaller guy.

He won the world champion title five times, so that says a lot," said Mayweather.

Jeff has worked with Floyd Mayweather, Sultan Ibragimov, and many other boxers. He was an advisor to blogger KSI's team ahead of the second fight against Logan Paul and has often helped in preparing Devin Haney.