Boxing champ Floyd Mayweather is being sued for allegedly agreeing to work on a shoe line, and then reneging on the deal.

According to court documents obtained by The Blast, Toren Washington is claiming that he “invented and designed sixty-seven patterns of footwears” and hit Mayweather up to bring his dream to fruition.

He says that the pair met up on August 20, 2014 at a gym in Chinatown to discuss working on the shoe line and that Mayweather viewed the designs and verbally agreed. Washington then requested Mayweather "to provide him with the shoe designs to start implementing their agreement and he provided him with the designs."

A rep from Mayweather's company then allegedly to him that they would book him a return trip to Vegas to meet and discuss the particulars of the contractual agreement relative to production, marketing, and percentage of profit sharing - but never did.

After four years, Washington is suing him for not getting a callback, claiming that he "suffered damages" due to Mayweather backing out of their deal and even accuses Floyd Mayweather of fraud.

Without a written contract to move forward, how much of this can be proven? 

This comes just weeks after Mayweather was accused of backing out of a deal to fight  Japanese kickboxer, Tenshin Nasukawa on New Year's Eve.