According to an excerpt from Billy Walters’ upcoming book, Phil Mickelson called him in 2012 from the site of the Ryder Cup and asked Walters to place a $400,000 wager for him on the U.S. to win. Original article: https://www.reviewjournal.com/sports/betting/mickelsons-outrageous-sports-betting-laid-bare-in-walters-book-2885386/
