A legal battle has emerged between Baltimore Ravens quarterback Lamar Jackson and Hall of Famer Troy Aikman over the trademark use of the No. 8 jersey number. Jackson has filed complaints with the U.S. Patent and Trademark Office, challenging Aikman's attempt to use 'EIGHT' on merchandise, citing potential confusion for consumers. Both players have significant ties to the number 8 throughout their careers, with Jackson emphasizing his promotion and branding efforts around the number. The dispute includes Aikman's association with a company marketing products featuring the number 8 and Jackson's prior trademark applications using phrases like 'Era 8.' The situation raises questions about ownership of jersey numbers in professional sports and the legal complexities surrounding their commercial use.