No one is immune to being tuned out by Brooks Koepka's intense focus.
Not even his girlfriend, Jena Sims.
One of golf’s most famous couples had an awkward moment as Koepka reported for his final round at the PGA Championship on Sunday.
With CBS cameras recording them walking, the Sharknado 3 actress went in for a good luck kiss.
Koepka, meanwhile, did not and, if we’re reading her body language correctly, it appeared that Sims wasn’t too happy.
Good luck charm
We were first introduced to Sims two years ago when Fox announcer Joe Buck called her the name of one of Koepka’s previous girlfriends.
Sims may really be Koepka’s good luck charm, though.
"He’s very aware of his success and the timing of our relationship,” Sims joked with Golf.com on Saturday.
"I can’t take the credit for that. All I can do is make him happy.
"I’m quirky and weird, I like to make him laugh. I encourage him to be himself.”
Koepka went on to win his fourth major in less than two years, winning by two shots despite a horror final round.
The American recorded five back-nine bogeys during a four-over-par 74 that left him at eight under.
World No.1 Dustin Johnson made it interesting as he closed with a 69 to finish second at six under, while Jordan Spieth (71), Patrick Cantlay (71) and Matt Wallace (72) shared third at two under.
And we're happy to report that Sims finally got that kiss.
Koepka began the final round with a seven-shot lead, the largest 54-hole cushion in PGA Championship history and a margin no player had ever relinquished after three rounds on the US PGA Tour.
But Koepka appeared to be on course for the biggest choke ever recorded at the majors when his lead was cut significantly by a barnstorming Johnson.
As Koepka bogeyed the par-3 14th and Johnson had birdied the 15th, Johnson came within one shot of his fellow long-hitter.
Despite finding a horrible lie on the lip of a fairway bunker on the 18th, Koepka salvaged a miraculous par and has now won four of the past six majors played on US soil.
No player has achieved that feat since Tiger Woods between his historic run between 1999 and 2001.
"I'm just glad we didn't have to play any more holes, That was a stressful round of golf," Koepka said on the 18th green.
"I'm still in shock. I don't know if I dreamed of this but this is so cool."
Six-time major winner Nick Faldo was astonished at Koepka's dominance, becoming the first male in golfing history to win his first four major titles in less than two years.
"Winning four majors out of eight he's played ... 50 per cent? That for me is dominance. Some seriously unbelievable dominance," Faldo said.