The NFL is investigating an advertisement for an adult film event in Miami that included the images of Bears safety Major Wright and other players. Wright, Chargers draftee Corey Liuget and other players appear in uniform in an advertisement for last month's Exxxotica Expo 2011. "It's an intellectual property issue since the players were featured in their team jerseys," Brian McCarthy, NFL vice president of corporate communications, said. "The NFL office works on behalf of the clubs to protect their intellectual property rights in matters such as this. Our legal team is reviewing the ad. In general, companies not affiliated with the NFL or its clubs may not depict a player in his uniform."