Paulina and Dustin have welcomed their first son into the world Credit: Michael Kovac/AMA2013/Getty Images for Dodge

He's here! Paulina Gretzky and her golfer pro fiance Dustin Johnson have welcomed their first baby into the world — making retired hockey legend Wayne Gretzky a grandpa!

The baby boy was born on Monday, Jan. 19, Johnson's agent confirms to Us Weekly.

"Paulina and I are happy to announce the arrival of our baby boy, who was born in Los Angeles on Monday morning," Johnson wrote in the statement. "Both Paulina and the baby are healthy, resting comfortably, and in great spirits! We sincerely appreciate the outpouring of love and support we have received and plan to release further details in the coming days!" he added.

Happiest day of our entire lives was welcoming our sweet baby boy into the world 1.19.15 @djohnsonpga

A photo posted by Paulina Gretzky (@paulinagretzky) on Jan 21, 2015 at 9:39am PST

Excited Paulina, 26, announced the news that she was expecting in September 2014, sharing a picture of her cute baby bump via Instagram. "@djohnsonpga & i are so excited to finally share with you all our amazing news..we're having a baby!!" she captioned the snap of her cradling her belly while posing poolside.

The couple's baby joy is much needed good news for Johnson, 30, who took a leave of absence from competitive golf last July to "seek professional help for personal challenges." He has denied that cocaine use was the reason.

In a new interview with Sports Illustrated, the sports pro revealed his was well on the way to getting his life back together, with the help of his future wife and her supportive family.

“Over these past four or five months I’ve really grown up,” he told the magazine. “I am starting to become the person I want my kids to look up to.”