Who's your Chaddy!
With the predatory instincts of a great white shark, Chad Le Clos hunted down the legendary Michael Phelps over the final lap to do the impossible - win an Olympic gold medal in the men's 200m butterfly event here last night.
Cameron van der Burgh, the newest 100m breaststroke champion, was on his feet with his swimming teammates as they watched Le Clos clinch South Africa's second gold medal in three days.
Le Clos, 20, considered a prospect only for 2016, was offered a sniff of an opportunity last night and he did more than take it - he grabbed it with both hands and ravaged it without mercy.
His brutal swim over the last 50m will remain etched in the minds of every South African who watched it. Many could not believe what they saw when the results were flashed on the board, showing that Phelps had failed in yet another London quest. The collective gasp of surprise was followed by screams and cheers for South Africa's newest hero.
"It was a dream come true," Le Clos said after his epic victory.
"I can't believe I beat him in a final. It was something I've lived over a million times in my mind [before the race], I'm still shocked I won. I can't believe it. I'm so proud to have been there and lived my dream. I'm as shocked as you."
For most of the race, Le Clos looked as if he would do no better than bronze or silver. He had been second behind Phelps going into the first and second turns, but then slipped into third spot by the final third turn, and it seemed as if Phelps would get his first individual gold medal of the Games.
But the Durban giant-slayer had other ideas; he really gets going only on the final lap.
He started fighting back.
First he passed Japan's Takeshi Matsuda before hunting down Phelps, the biggest name in world swimming.
Le Clos speared Phelps just before the wall, touching perfectly at the end of his stroke to relegate his idol to the silver medal by just five-hundredths of a second.
The South African was the quickest over the final lap by nearly half-a-second, clocking 29.20s compared with Phelps's 29.83.
Le Clos touched in 1min 52.96 - nearly two seconds faster than his personal best - and Phelps in 1:53.01. Matsuda took bronze in 1:53.21.
Before last night, Le Clos had never been below 1:54.00. Now he's on top of the world.
On that devastating last 50m lap, he said: "I felt like him, I felt like I was Phelps."
Until Van der Burgh's triumph on Sunday, South Africa had never had an individual male Olympic swimming champion. Now it has two. In terms of gold medal hauls, London is already South Africa's second-happiest hunting ground, after the three golds it won in Atlanta 1996.