Phil Mickelson says he 'never bet on the Ryder Cup' after former associate claims he did in 2012

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Phil Mickelson isn’t denying a book passage that claims he wagered more than $1 billion on sports bets, but he's pushing back on trying to bet on the Ryder Cup.

Details in the new book by Billy Walters titled "Gambler: Secrets from a Life at Risk," allege that Mickelson bet more than $1 billion on various football, basketball and baseball games over the last 30 years. It also alleges that Mickelson asked an associate to place a $400,000 wager on the U.S. team in the 2012 Ryder Cup because he felt they couldn’t lose.

Mickelson was playing on that U.S. Ryder Cup team, but he denies ever asking someone to place a bet.

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Phil Mickelson is shown during the LIV Golf Greenbrier event on August 5, 2023, at White Sulphur Springs, West Virginia. (Joe Robbins/Icon Sportswire via Getty Images)

"I never bet on the Ryder Cup," he posted on X, formerly Twitter. "While it is well known that I always enjoy a friendly wager on the course, I would never undermine the integrity of the game."

Mickelson also noted his openness about his gambling addiction.

"I have previously conveyed my remorse, took responsibility, have gotten help, have been fully committed to therapy that has positively impacted me and I feel good about where I am now."

PHIL MICKELSON ALLEGEDLY WAGERED MORE THAN $1 BILLION ON SPORTS BETS, BOOK SAYS

Walters is a legendary gambler, believed to be one of the most successful in history. He was open about his association with Mickelson in the excerpt of his book, which was published in Golf Digest and Fire Pit Collective.

The two had a partnership in 2008, which Walters said lasted