Bryson DeChambeau broke down in tears after he won back-to-back LIV Golf titles with a play-off victory at the inaugural South African event.
DeChambeau and Spain’s Jon Rahm had both finished on 26 under par over 72 holes at Steyn City in Johannesburg.
The American, 32, birded the first extra hole in the play-off to edge out Rahm which clinched consecutive titles following his victory in Singapore last weekend, also via a play-off.
“I wish I could tell you why I am so emotional,” DeChambeau said afterwards.
“A lot had happened in my life in the last week, I am so grateful for my team and everybody supporting me.
“Golf is a fickle game, you work so hard at it your whole life and then you realise golf is just golf.”
Last weekend, Canada’s Richard T Lee missed a short putt to hand two-time major winner DeChambeau victory.
But on this occasion a superb second shot in the play-off from DeChambeau at the par-five 18th set up the win.
After a tee shot landed in grass muddied by torrential rain, DeChambeau slammed the ball into the heart of the green with a wood.
Rahm failed to take advantage of his tee shot on to the fairway as his second found a greenside bunker.
After he reached the green in three, Rahm watched his birdie putt slide right, which left DeChambeau needing two putts for victory and a £3m ($4m) first prize.
His eagle putt stopped just short before he tapped in for a triumph that triggered an emotional reaction.
After tournaments this season in Saudi Arabia, Australia, Hong Kong, Singapore and South Africa, the sixth LIV Golf event will be in Mexico from 16 April.