Former NFL star Chad Johnson has admitted to being the man in a sex tape co-starring two female friends making the Internet rounds but claims he didn't leak it to the public. Johnson acknowledges ... a sex tape which appears to feature the former Miami Dolphin — along with two women — is real — but he insists he never wanted the video to go public, reports TMZ. The former All-Pro told TMZ he had no idea how the tape — which was shot three years ago in a Florida hotel room — was leaked to the Internet but claims he had nothing to do with it going viral. So far the video has only made it into cyberspace in bits and pieces — although the entire tape is "substantial in length." Johnson has been looking to hook up with an NFL team since being released by the Dolphins after being arrested for an domestic incident with his ex-wife Evelyn Lozada over the summer. Lozada confirmed that the sex tape released Christmas morning is of Johnson but said the video is "old news." In his first press conference with the Dolphins in August, Johnson was asked what he would be doing if he wasn't playing football. The wide receiver replied, "I was thinking about going into porn. It's not funny. I got to earn a living." He is now exploring his legal options in hopes of having the tape removed from the website.