We've confirmed ... emergency personnel responded to a call around 7:30 AM to a coffee shop. The 63-year-old was loaded into an ambulance and transported to a nearby hospital for treatment.
A rep for the Mayweather camp tells us Floyd Sr. was simply dehydrated and is doing much better now. We're told he's not expected to be held overnight.
Floyd Sr. was a pretty good boxer in his own right -- and fought Sugar Ray Leonard in 1978 (he lost though). He eventually became one of the biggest trainers in boxing.
