Wayne Gretzky is going to be a grandfather.

Paulina Gretzky, daughter of the NHL Hall of Famer, announced Tuesday on her Instagram account that she and fiance, PGA golfer Dustin Johnson, are expecting their first child.

The 25-year-old posted a photo of herself cradling her belly, with the caption: (at)djohnsonpga & i are so excited to finally share with you all our amazing news..we're having a baby!!"

Younger brother Trevor Gretzky, a minor leaguer in the Los Angeles Angels' organization, followed up by tweeting "Uncle Trev," along with the same photo.

Gretzky and Johnson announced their engagement in August 2013.

Earlier this year, Paulina drew some controversy by appearing on the cover of Golf Digest Magazine, posing in skintight capris and a bra.

The provocative photo caused a stir in the golf community, with LPGA Tour Commissioner Mike Whan weighing in to say he was "disappointed and frustrated" with the cover.

Johnson is on a leave of absence from the golf tour.