Floyd Mayweather Sues Ex-Fiancée For Theft

Floyd Mayweather is suing his ex-girlfriend Shantel Jackson for running up his credit cards and helping herself with piles of cash.

According to documents, gathered by TMZ Sports, Shantel had access to Floyd's credit card accounts, and scooped cash around his house, to go on personal shopping sprees. He claims she shipped all her illicit booty to a secret location to keep him in the dark.

Floyd claims Shantel would praise him in public when he got bad press purely to gain his confidence. In the docs, his lawyer writes ... "As a result of that confidence, Mayweather, who's education ended at 12th grade, did not audit or otherwise inspect either his cash or his credit card statements for theft by Jackson."

Mayweather and Shantel

According to the lawsuit, Floyd only found out when a mutual friend told him Shantel had been bragging about her financial exploits.

The champ's suing his ex for theft -- no specific amount. Shantel is also counter suing him for a slew of reasons, including domestic abuse and invasion of privacy.