Deontay Wilder might want to pick up the phone and call Floyd Mayweather -- because TBE just suggested he could help Deontay beat Tyson Fury ... if Floyd trains him!
Mayweather was speaking at an event in Manchester, England over the weekend when he was asked straight-up -- "Do you think Wilder will win in a rematch with Fury?"
Floyd responded, "If I train him! If I train him, I can teach him how to win!"
Floyd has been especially supportive of Deontay after the Bronze Bomber lost that Feb.