Jena Sims, the wife of Brooks Koepka, posted an emotional video on TikTok moments after her husband locked up his third career PGA Championship on Sunday evening.

Koepka held off Viktor Hovland and Scottie Scheffler to win the major at Oak Hill Country Club in Rochester, New York. It was his fifth major victory in his career.

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Jena Sims in New York

Jena Sims attends the 2023 Sports Illustrated Swimsuit Issue launch at Hard Rock Hotel New York on May 18, 2023, in New York City. (Gotham/FilmMagic)

Sims was at a loss for words when she posted the video.

"All I got is tears at the moment," she captioned the clip.

"I’m so incredibly proud but I know someone who’s going to be even more stoked," she added as she tilted the camera down to show her pregnant stomach.

Jena Sims and Brooks Koepka at the Masters

Brooks Koepka poses with his wife, Jena Sims Koepka, during the Par 3 contest prior to the Masters at Augusta National Golf Club on April 5, 2023, in Augusta, Georgia. (Andrew Redington/Getty Images)

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Koepka and Sims announced earlier this month they will be having a baby.

Koepka was playing in the LIV Golf event in Tulsa, Oklahoma, this past weekend, and the 34-year-old accidentally referred to the baby as "he" while answering a question about which traits he’d love to see from himself and his wife in their child.

Koepka had four bogeys on his scorecard, but his seven birdies, including three in his first four holes, led to a victory-lap 18th hole and a Sunday 67 to finish 9-under for the tournament.

Jena Sims in Florida

Jena Sims Koepka attends the Sports Illustrated Swimsuit Issues Launch at the Hard Rock Live at Seminole Hard Rock Hotel on May 19, 2023, in Hollywood, Florida. (Ivan Apfel/Getty Images)

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With his victory, Koepka not only captured his third PGA Championship and fifth major title, but he also won a record $3.15 million for the major.

Fox News’ Scott Thompson contributed to this report.