(Photo credit: Mike Frey-Imagn Images)

Jon Rahm downplayed a terse interaction with a fan during the first round of The Open Championship on Thursday.

The Spaniard was playing the par-4 10th hole at Royal Portrush in Northern Ireland when he sent his approach shot into the right rough. He immediately turned to a spectator who had made a whistling noise during Rahm's backswing.

'Really? Whistling? Right, great time,' Rahm said. 'Right on my backswing. Very smart, whoever it was.'

Rahm would go on to bogey the hole along with the following one. The LIV Golf star did manage a birdie on the 14th and finished with a 1-under 70. After the round, he credited the noise made by the fan as unfortunate timing and his ensuing reaction to frustration.

'I mean, if I were to paint a picture, you have the hardest tee shot on the course, raining, into the wind off the left, it's enough,' Rahm told reporters. 'I know they're not doing it on purpose. It just seemed like somebody trying to get a hold of someone for whatever it is. It was bad timing.

'I think I just used the moment to let out any tension I had in me. Really that's not -- it is what it is. To be honest, it probably didn't affect as much as I made it sound like. It was a bad swing as well. Just a difficult hole.

'I mean, it's frustrating, but it is what it is. It's an everyday thing in golf.'

Rahm, 30, is coming off a runner-up finish at LIV's event in Andalucia, Spain, last week. His best previous finish at The Open was a tie for second two years ago, and Rahm tied for seventh at the U.S. Open last month following a T8 at the PGA Championship and a T14 at the Masters.

The two-time major champion is seeking to complete a third leg of the career Grand Slam this week. He has wins at the Masters Tournament and the U.S. Open to his credit.

'There's just a few things that would make this one so special. Not only getting to three majors, being the second Spanish player (along with) Seve (Ballesteros) to win an Open and being the only one to three different majors, that would be -- yeah, makes it very, very special, on top of everything that already is.'

--Field Level Media