The legal fight over NBA rookie Zion Williamson’s endorsement potential now includes an allegation his family received $400,000 from a marketing agency before playing at Duke. Prime Sports Marketing and company president Gina Ford filed a lawsuit last summer in Florida, accusing Williamson and the agency now representing him of breach of contract. Williamson had filed a lawsuit in North Carolina to terminate a five-year contract with Prime Sports. In court filings Thursday, Ford's attorneys included a letter signed by Williamson and his stepfather to repay a 2018 loan from a different agency. Williamson's attorney says those documents are “fraudulent.”