The only time star colts Denman and So You Think have raced each other was in the Caulfield Guineas when both were unplaced, a one-off event for each of them.Much has happened since then with the two set to meet in a tantalising clash in the Autumn Stakes (1400m) at Caulfield on February 20 ahead of another showdown in the Group One Australian Guineas (1600m) two weeks later at Flemington.Denman's two starts this year have brought two comprehensive wins including a stroll around Caulfield on Sat

The only time star colts Denman and So You Think have raced each other was in the Caulfield Guineas when both were unplaced, a one-off event for each of them.

Much has happened since then with the two set to meet in a tantalising clash in the Autumn Stakes (1400m) at Caulfield on February 20 ahead of another showdown in the Group One Australian Guineas (1600m) two weeks later at Flemington.

Denman's two starts this year have brought two comprehensive wins including a stroll around Caulfield on Saturday in the Listed Wellington Racing Club Stakes.

So You Think's next outing after the Caulfield Guineas was a breathtaking all-the-way win in the Cox Plate.

He hasn't raced since running second to All American in the Emirates Stakes on the final day of the Melbourne Cup carnival but trainer Bart Cummings is not concerned about his fitness levels.

Cummings watched Saturday's Caulfield race from Rosehill and while impressed with Denman, said he had every confidence in his colt.

"Denman looked good but So You Think is coming along nicely," Cummings said.

"The two look a class above the rest."

Denman tightened to $2.60 favourite with TAB Sportsbet for the Guineas after Saturday's victory with So You Think at $5.50.

Cox Plate runner-up Manhattan Rain was next at $11 with trainer Gai Waterhouse yet to make a decision on whether he goes to Melbourne.

Manhattan Rain makes his return in the Group Two Royal Sovereign Stakes (1200m) at Randwick on Saturday with Waterhouse to confirm plans after that race.

Cummings toyed with running So You Think in the Australian Cup (2000m) on the same day as the Guineas but said he would tackle the shorter race.

"They are both on the same day so you can't run in both," he said.

"The committee should do something about it.

"If there are three-year-olds who can do both they should be given the opportunity.

"As it is, I think he will run in the Guineas."

Caulfield Guineas winner Starspangledbanner will run in the Newmarket Handicap (1200m), the third Group One at Flemington on March 6.

Denman, a son of champion racehorse Lonhro, has won eight of his 10 starts and been placed at one other.

So You Think has had just six starts for three wins and two placings. He is by High Chaparral and his breeding suggests longer distances will be in his keeping.