So You Think mowed down Workforce in a thrilling finish to the Coral-Eclipse at Sandown on Saturday afternoon.
Workforce's pacemaker Confront went to the lead as anticipated in the early stages of the 10-furlong Group One, but Ryan Moore was happy to let Workforce run to the lead rounding the turn for home.
Seamie Heffernan soon followed him through on 4-6 favourite So You Think, but Workforce pulled a couple of lengths clear and it appeared at that stage as though the Derby and Arc winner would claim another notable victory.
But the complexion of the race changed inside the final furlong and So You Think managed to eat into the leader's advantage, getting by him when it mattered to record a half-length success in a pulsating race.
Last year's runner-up Sri Putra put up another fine effort in defeat, finishing third.
Heffernan said: "He's just a very good horse and things went smoothly today. I was delighted to be on him.
"It was a nice pace and it was just like a piece of work as I had a good horse leading me. Hopefully he can keep this up.
"He might have been a little bit fresh going to Ascot (when narrowly beaten in the Prince of Wales's Stakes) and things just didn't go smoothly. He probably did well to come second there."
William Hill make the Aidan O'Brien-trained So You Think 9-4 from 4-1 for the King George, while he is 4-1 (from 7-1) for the Prix de l'Arc de Triomphe.
Sky Bet meanwhile go 7-2 from 11-2 So You Think for the Arc, while Workforce is 9-2 from 4s.
Spokesman Matt Doyle said: "So You Think has justified his superstar status today and will clearly be a huge player in all the major races. It doesn't seem as though the King George is on his agenda but Longchamp certainly seems to be an attractive proposition for connections."
