(CNN) Phil Mickelson minted golf history on Sunday, becoming the oldest winner of a major tournament with his victory at the 2021 PGA Championship . Mickelson celebrates after winning the PGA Championship. While Koepka's confidence seemed to drip away hole by hole, Mickelson only got better, birdieing two and picking up pars on the next six holes. Record breakerHeading into the PGA Championship, Mickelson was most likely very far away from people's favorites to win. In winning, Mickelson became the fourth golfer in PGA Tour history to win in four different decades.

Source: CNN May 23, 2021 23:12 UTC