LIV Golf stars LIV golfers Phil Mickelson and Pat Perez have had a pretty strained relationship due to an “unforgivable” act that Perez claims Mickelson made. And now thanks to Phil Mickelson’s new biography, “Lefty,” we have a good idea of what that act likely was.

According to author Alan Shipnuck, who wrote Mickelson’s new biography, Mickelson once showed Perez’s wife an “offensive” picture.

“As the story goes, when Pat excused himself to use the restroom during dinner, Mickelson whipped out his phone to allegedly show her a photograph of himself that she found offensive,” Shipnuck wrote in the book, according to the New York Post.

Back in November of 2022, Perez addressed the feud between him and Phil Mickelson, calling the act “unforgivable” – though he didn’t specifically detail what Mickelson did.

“When it comes to Phil, I have a different hate for Phil than most people,” Perez said on Claude Harmon’s podcast. “People won’t know the story—I’m not going to go into the story again—but Phil crossed the line with me that is just uncrossable and unforgivable.

“He knows that he screwed up. He apologized for the action, but I cannot forgive him for it because I’ve known Phil for a long, long time. I’ve known the guy forever. And the fact that when he made this action, not only was it—he had intentions of doing it; he knew it was going to happen before it happened and when he did it—I was hurt, for one. I was like ‘How can this guy do this?’”

But now we know exactly what that “unforgivable act” was, and social media was buzzing about it.