Former Southampton captain Claus Lundekvam claimed that illegal betting could have taken place in the most popular national league on the continent at the end of the 1990s.
According to him, footballers manipulated events such as "the first throw-in from the sideline" in betting offices around the world, but he tended to call it "jokes."
"Of course, I am willing to talk to FIFA about it - I have no problems," Lundekvam told The Sun. "I can reveal a few matches and names. But I don't want to say anything more than has already been announced, and name others.
"I really didn't think about anything. Why would I need that? I won't gain any personal benefit from it. I regret that my sincerity has caused so much discussion."
And he added: "This behavior was never about making money. We could have bet huge sums, but we didn't. It was just jokes in the dressing room, betting small amounts. We never manipulated the final results."
Speaking to Norwegian television channel NRK earlier, he said: "I'm not proud of it. We allowed ourselves to do it almost every week and earn a little. We could agree with the opposing team's captain on things like the throw-in from the sideline, the first corner kick, a yellow card, or a penalty kick. These were events directly influenced by us."