U.S. Open at Oakmont Country Club could mark the end of an iconic era. Phil Mickelson, who's played in 33 U.S. Opens and has six runner-up finishes at the major championship, admitted there's a "high likelihood" this could be his last.

Phil Mickelson admitted the 2025 U.S. Open at Oakmont will likely be his last, reflecting on missed chances and fading Grand Slam hopes.

Phil Mickelson, who turns 55 on June 16, may get his last chance at a career Grand Slam at the U.S. Open next week in Pittsburgh. He's a six-time runner-up.