Phil Mickelson accepts special exemption to play in 2021 U.S. Open: ‘You can’t win if you don’t play’ Posted by: Stonecom Interactive Friday, May 14, 2021 Mickelson is a six-time runner-up at the U.S. Open and has ten top-10 finishes in 29 appearances Source 2021-05-14 Stonecom Interactive