Rory McIlroy is three shots off the lead at the at the 123rd US Open after an opening round 65 in Los Angeles.
The Holywood man raced to the turn in 30 with five birdies in his first eight holes before following a run of six pars with a birdie on the 124-yard 15th, where Matthieu Pavon and Sam Burns both made a hole-in-one.
However, the four-time major winner then dropped his only shot of the day on the 18th and did not speak to waiting reporters after being required to undertake a drug test.
