DeChambeau-Koepka spat overshadowing tough US Open course

Brooks Koepka plays his shot from the second tee during a practice round of the U.S. Open Golf Championship, Tuesday, June 15, 2021, at Torrey Pines Golf Course in San Diego. (AP Photo/Jae C. Hong)

Bryson DeChambeau hits from the 18th green bunker during a practice round of the U.S. Open Golf Championship, Tuesday, June 15, 2021, at Torrey Pines Golf Course in San Diego. (AP Photo/Marcio Jose Sanchez)

Rory McIlroy, of Northern Ireland, right, laughs with Paul Casey, of England, during a practice round of the U.S. Open Golf Championship, Tuesday, June 15, 2021, at Torrey Pines Golf Course in San Diego. (AP Photo/Gregory Bull)

Bryson DeChambeau takes a practice swing on the 18th tee during a practice round of the U.S. Open Golf Championship, Tuesday, June 15, 2021, at Torrey Pines Golf Course in San Diego. (AP Photo/Marcio Jose Sanchez)

Brooks Koepka walks to the fourth tee during a practice round of the U.S. Open Golf Championship, Tuesday, June 15, 2021, at Torrey Pines Golf Course in San Diego. (AP Photo/Jae C. Hong)

Fans walk along the third fairway during a practice round of the U.S. Open Golf Championship, Tuesday, June 15, 2021, at Torrey Pines Golf Course in San Diego. (AP Photo/Jae C. Hong)

Bryson DeChambeau plays a shot on the 17th green during a practice round of the U.S. Open Golf Championship, Tuesday, June 15, 2021, at Torrey Pines Golf Course in San Diego. (AP Photo/Marcio Jose Sanchez)

Brooks Koepka walks on the first green during a practice round of the U.S. Open Golf Championship, Tuesday, June 15, 2021, at Torrey Pines Golf Course in San Diego. (AP Photo/Jae C. Hong)

Adrian Meronk, of Poland, hits from the 18th tee during a practice round of the U.S. Open Golf Championship, Tuesday, June 15, 2021, at Torrey Pines Golf Course in San Diego. (AP Photo/Marcio Jose Sanchez)

Jon Rahm, of Spain, hits from the seventh tee during a practice round of the U.S. Open Golf Championship, Tuesday, June 15, 2021, at Torrey Pines Golf Course in San Diego. (AP Photo/Gregory Bull)