A new report has claimed that Lindsey Vonn cheated on boyfriend Tiger Woods, according to an alleged source who spilled the beans to The National Enquirer. 

The source said that the 28-year-old Olympic skier was spotted kissing a man backstage at a Justin Timberlake and Jay Z concert in Miami on Aug. 16. 

Lindsey, was seen engaging in a very public make-out session with the man, who is said to be older. 

"After the concert was over, Lindsey and a group of female friends, carrying drinks, made their way backstage, and Lindsey spotted a guy she very obvi­ously knew well," a source told The ENQUIRER.

"She threw herself into his arms and they started on a long session of deep kissing that went on for several minutes. He was a tall, good-looking man, in his mid-40s, with graying temples. They were really going at it. They were both holding drinks, and Lindsey's free hand was around his neck, drawing him closer, while his hand was gripping her rear end."

At the time, Lindsey was in Miami for a "LVTakesMiami" promotion and photo session for one of her sponsors, Red Bull. She tweeted that day, 

 "Wow that was amazing! Best concert I've ever been to!"

Before dating Woods, Lindsay was married to former coach Thomas Vonn in 2011. After four years of marriage, which lead to a divorce, she revealed that she hated mixing business with pleasure in the August issue of Vogue magazine. 

"Doesn't work. I think there needs to be a certain kind of understanding because it's very hard for me to relate to someone who doesn't do sports at a high level. That part is necessary. But to have business in the relationship is very difficult," Lindsey said. 

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