Dustin Johnson and Paulina Gretzky

Dustin Johnson and Paulina Gretzky became parents on Monday, with the Great One's daughter giving birth to the engaged couple's first child, a son.

Dustin Johnson and Paulina Gretzky

Paulina Gretzky and Dustin Johnson attend a game between the Los Angeles Kings and the Anaheim Ducks during the 2014 Coors Light NHL Stadium Series at Dodger Stadium on January 25, 2014 in Los Angeles, California. (Photo by Harry How/Getty Images)

Dustin Johnson and Paulina Gretzky

Pro golfer Dustin Johnson and model Paulina Gretzky attend the 2013 American Music Awards Powered by Dodge at Nokia Theatre L.A. Live on November 24, 2013 in Los Angeles, California. (Photo by Michael Kovac/AMA2013/Getty Images for Dodge)

Dustin Johnson and Paulina Gretzky

Dustin Johnson attends with Paulina Gretzky the BMW International Open 25th Anniversary Party at Rilano No.6 Lenbach Palais on June 21, 2013 in Munich, Germany. (Photo by Alexander Hassenstein/Getty Images For BMW)

Dustin Johnson and Paulina Gretzky

Dustin Johnson of the USA nurses a Koala with his partner Paulina Gretzky as she nurses a Joey during day two of the Perth International at Lake Karrinyup Country Club on October 18, 2013 in Perth, Australia. (Photo by Matt King/Getty Images)

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Paulina Gretzky

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Dustin Johnson and Paulina Gretzky

ROCHESTER, NY - AUGUST 11: Paulina Gretzky follows the play of Dustin Johnson during the final round of the 95th PGA Championship on August 11, 2013 in Rochester, New York. (Photo by Sam Greenwood/Getty Images)

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Dustin Johnson and Paulina Gretzky

MUNICH, GERMANY - JUNE 21: Dustin Johnson attends with Paulina Gretzky the BMW International Open 25th Anniversary Party at Rilano No.6 Lenbach Palais on June 21, 2013 in Munich, Germany. (Photo by Alexander Hassenstein/Getty Images For BMW)

Paulina Gretzky

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Paulina Gretzky walks along the 17th hole during the final round of the Hyundai Tournament of Champions at the Plantation Course on January 8, 2013 in Kapalua, Hawaii.

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Dustin Johnson and Paulina Gretzky

AUGUSTA, GA - APRIL 12: Paulina Gretzky walks the course during the second round of the 2013 Masters Tournament at Augusta National Golf Club on April 12, 2013 in Augusta, Georgia. (Photo by Mike Ehrmann/Getty Images)

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Paulina Gretzky watches the play of Dustin Johnson during the first round of the AT&T Pebble Beach National Pro-Am at the Monterey Peninsula Country Club on February 7, 2013 in Pebble Beach, California.

Dustin Johnson and Paulina Gretzky

The PGA pro and the pooch.

Dustin Johnson and Paulina Gretzky

KAPALUA, HI - JANUARY 08: Paulina Gretzky walks along the 17th hole during the final round of the Hyundai Tournament of Champions at the Plantation Course on January 8, 2013 in Kapalua, Hawaii. (Photo by Christian Petersen/Getty Images) *** Local Caption *** Paulina Gretzky

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