The husband of Desperate Housewives star Eva Longoria is suing a celebrity gossip website for at least $40m (£20m) over claims he had an affair.
The couple sold their wedding photographs to OK! magazine
Basketball star Tony Parker is suing X17online.com for alleging he had an affair with model Alexandra Paressant.
The website posted a series of "false" stories, according to legal papers filed in Los Angeles Superior Court.
X17online.com ran an interview with Ms Paressant in which she claimed she and Mr Parker had a two-month affair.
The story said Ms Paressant told the website she attended Mr Parker's wedding with a group of friends including French football player Thierry Henry.
The legal case said: "X17 had to know that the story was false, or, at the very least, it had to have entertained serious doubts about the credibility of the supposed source."
It continued: "No one from X17 attempted to contact Mr Henry, who... would have told them in no uncertain terms that this woman was not at the wedding."
An after-hours call to X17's Beverly Hills office was not immediately returned.
Belgian-born Mr Parker, 25, married Ms Longoria, 32, in Paris in July.
The high-profile couple defended their marriage in People magazine last week.
"I love my wife. She's the best thing in my life, and I have never been happier," Mr Parker said.
"Tony has been nothing short of the perfect husband," Ms Longoria added.