Teeing off on the back-nine, Herbert started his round on the par four 10^th with a birdie after landing his approach shot to within 10 feet of the hole.

He followed it straight up with a par on the par four 11^th, but dropped a shot to card his first bogey of the round on the 12^th after missing his approach shot and landing in the rough.

The remainder of the back-nine was clean, with holes 13 through 18 all on par.

On the par four 1^st, Herbert hit the green in regulation with easy an two-putt for par.

He missed his approach on the par four 2nd after landing in the right front green side bunker, after getting out of the sand with ease he followed it up with a two-putt to card his second bogey of the round.

There were no issues on the par three 3^rd, hitting the green in regulation and following it up with a two-putt.

Sitting at one-over par, he went on to birdie the par five 4^th after nailing his approach shot to the fringe of the green, with 52 ft left to the hole - an easy two putt for his second birdie of the round.

Now at even-par, Herbert was back on track.

However, that's where all the fun stopped.

On the par four 5^th, he missed his approach shot 67 yards shy of the hole - after making the green in three shots he narrowly missed out on par after rolling a 34 ft putt just short of the hole, he then tapped it in for bogey.

On the par four 6^th his drive landed in the unforgiving native area, with his approach shot to the green only going 21 yards.

His third shot landed in the middle of the green and was now faced with a 49 ft putt to make par - with it rolling just 1 ft short to card another bogey.

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With three holes left to play, it was Herbert's chance to drop shots to secure round one at under-par.

After a stray drive into the native area on the par four 7^th and an approach shot that only went 55 yards, par was a tall order for Herbert.

His approach shot for three landed almost dead centre on the green and was faced with 31 ft putt for par.

After a solid roll, he finished an unfortunate 1 ft short of the hole to card another bogey to leave him at three-over par with two to play.

On the par three 8^th, his tee shot landed on the edge of the green with a 46 ft putt for par.

After a solid roll he finished just short of the hole, with an easy 3 ft putt to secure par.

To finish up the first round on the par four 9^th Herbert nailed his tee shot to leave him with a clear shot to the green, but landed his approach just shy in the rough with 70 ft to the hole.

His third shot landed 5 ft short of the hole, but then missed his shot at par by 2 ft - he then tapped it in to card his sixth bogey of the round and to finish at four-over par in T91 position.

Herbert was playing alongside Cory Schneider (US) who finished at four-over par and Im Sung-jae (KOR) one-over par.

The round one leader and reigning champion Brooks Koepka (US) shot a seven-under par 63 to set the new Bethpage Black course record.

New Zealander Danny Lee trails close behind Koepka in second position after shooting six-under par 64.

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