Rory McIlroy announced on the eve of the Tour Championship he has become a father for the first time with the birth of his daughter Poppy Kennedy.
Four-time major winner McIlroy revealed on social media that this wife, Erica, gave birth in Florida on Monday.
McIlroy's participation in this week's lucrative tournament has been in doubt after he stated during the BMW Championship last week he would be "out of here" if he was on the golf course when his wife went into labor.
The Tour Championship gets under way at East Lake Golf Course on Friday and Northern Irishman McIlroy is still listed to tee off as defending champion.
McIlroy announced the new arrival on social media on Thursday, posting: "Poppy Kennedy McIlroy, born August 31st, 12:15pm.
"She is the absolute love of our lives. Mother and baby are doing great.
"Massive thank you to all the staff at Jupiter Medical Center and Dr Sasha Melendy for their amazing care."