Cristiano Ronaldo has denied raping an American woman – he described the claim as a "fake news".
The Portuguese footballer spoke on Sunday in an Instagram video on the allegations of Kathryn Mayorga.
Ms. Mayorga, 34, told the Spiegel that Ronaldo raped her in June 2009 in a hotel room in Las Vegas.
The magazine said that the two had come to an out-of-court settlement, in which they concealed the alleged rape and paid him $ 375,000 (£ 275,000).
In his Instagram live video, Ronaldo answered a question from a fan and said, "No, no, no, no, no – what they said today [is] fake, fake news.
"You want to promote with my name, that's normal.
"You want to be famous to say my name, yes, but it's part of the job.
"I am a happy man and all the best."
Spiegel reported that Mrs. Mayorga's lawyer, Leslie Mark Stovall, filed a civil suit to annul the confidentiality agreement.
He told the magazine, "The purpose of this lawsuit is to hold Cristiano Ronaldo before a civil court responsible for the injuries he caused to Kathryn Mayorga and the consequences of those injuries."
Ms Mayorga told the Spiegel that she no longer feels bound by the confidentiality agreement, as she suffers from the alleged rape nine years ago.
Ronaldo is one of the most famous athletes in the world. He was voted player of the year five times and recently completed a 100 million euro transfer from Real Madrid to Juventus.
The Italian club refused to comment on the Spiegel report, but Ronaldo's lawyer said he would seek a legal appeal from the magazine because he described it as "blatantly illegal."
Christian Schertz said in a statement: "It violates the personal rights of our client Cristiano Ronaldo in a very serious way.
"This is an inadmissible declaration of suspicions in the area of privacy.
"It would therefore be illegal to reproduce this report.
"We have been instructed to enforce all existing premisses claims against Spiegel without delay, in particular the compensation for the non-pecuniary damage in the amount of the infringement, which is probably one of the most serious violations of personal rights in recent years."
The deputy chief editor of the Spiegel, Alfred Weinzierl, told Reuters: "We have written questions [to Ronaldo’s management and lawyers about the allegations]to which there were no answers.
"No one has sued us in connection with previous Ronaldo reports."