Former Liverpool and France striker Djibril Cisse has denied any wrongdoing after being arrested in an inquiry into a sex tape extortion plot.
"They (French police) came to get me to hear my side of the story. I've never blackmailed anyone," said the 34-year-old after being released by officers.
Three men have been detained on suspicion of blackmail.
It is claimed they have mobile phone video footage of an international footballer having sex with his partner.
Cisse, who won the Champions League with Liverpool in 2005, was one of four people held.
However, prosecutors indicated the ex-Sunderland and QPR forward was not thought to be an instigator of the conspiracy and he was released without charge.
"This is something that could have been very bad for me but there's nothing to it. There is no scam," he said.
One of the suspects was charged with "blackmail and being part of a conspiracy" by a court in Versailles on Wednesday evening and is being held in custody.
Two other men detained by the same investigation in Marseille since Tuesday are waiting to appear before a judge.