A broken arm ... a snapped pinkie ... and evidence of extreme torture -- just a few of the injuries suffered by one of the men allegedly beaten by Floyd Mayweather's crew ... and TMZ Sports has the X-rays.
We broke the story ... two men have lawyered up, claiming Mayweather ordered them to be beaten to a pulp recently because he suspected they stole jewelry from his Vegas home.
One of the victims had X-rays taken after the alleged incident and they show a variety of painful injuries, including:
-- Broken right pinkie-- Severe swelling of the left hand -- Broken left ulna -- Cracked right ulna -- Multiple fractures in left hand that required pins to reset the bones
We're told the left arm was so badly broken, doctors drilled into the bone to attach a titanium plate so it would reset.
The men claim Mayweather was present during the attack, but it's unclear if the boxing champ actually participated in the beating.
For their part, we're told the men adamantly deny they took anything from Mayweather.