2021 U.S. Open scores: Phil Mickelson off to rough start as cell phone noise knocks him off game | CBS Sports Headlines 2021 U.S. Open scores: Phil Mickelson off to rough start as cell phone noise knocks him off game The reigning PGA Champion opened his week with 4-over 75 … Continue reading 2021 U.S. Open scores: Phil Mickelson off to rough start as cell phone noise knocks him off game