A sex tape allegedly starring O.J. Simpson has been leaked onto the internet.The home movie features a man with a striking resemblance to the star and two women having sex.However, Simpson's lawyer, Yale Galanter, has branded the tape a fake.He told America's New York Daily News newspaper "While my client may appear fully clothed in portions of the tape, the man having sex is an impostor."This tape is garbage and we can prove it. O.J. wouldn't do anything like this."The man selling the film, David Hans Schmidt, stands by the claim that it is the sporting legend.He said: "O.J. is welcome to say that's not him on the tape, but there's no question in my mind the real O.J. is having sex on this tape.

"When the tape comes out, people can make their own judgement."

The release of the 25-minute long adult tape comes almost 12 years to the day after the murders of O.J.'s wife Nicole Brown Simpson and Ron Goldman.

O.J. - who was accused of the killings - was later cleared of all charges.