Speed Dubai has emerged as a lightweight chance for the Sydney Cup with a dominant performance at Warwick Farm on the same day injury put Cup favourite Moatize's bid in doubt.Sporting the famous Tait family's red and white colours carried to two Sydney Cup wins by the Guy Walter-trained Tie The Knot, Speed Dubai stamped his authority on the Classic Mission Handicap (2200m).Ridden by Hugh Bowman, Speed Dubai surprised Walter when he led all the way to easily account for Grizz and the Bart Cumming

Speed Dubai has emerged as a lightweight chance for the Sydney Cup with a dominant performance at Warwick Farm on the same day injury put Cup favourite Moatize's bid in doubt.

Sporting the famous Tait family's red and white colours carried to two Sydney Cup wins by the Guy Walter-trained Tie The Knot, Speed Dubai stamped his authority on the Classic Mission Handicap (2200m).

Ridden by Hugh Bowman, Speed Dubai surprised Walter when he led all the way to easily account for Grizz and the Bart Cummings-trained favourite Joe Blow who finished third.

"That's why Hughie is held in such high regard and he loves this horse, that's three wins now on him," Walter said.

"I told him to put the horse wherever he was comfortable and he was comfortable leading which was a big shock but he looked good doing it.

"We'll give him a mile and a half race (2400m) in a couple of weeks and then head to the Sydney Cup with him, he deserves it."

The day began poorly for Bowman after the Bart Cummings-trained Moatize was ruled out of Saturday's $2.25 million BMW Stakes at Rosehill.

Bowman rode the horse in a track gallop on Tuesday morning and said everything was fine during the run.

"There were no dramas and I only heard on the radio on my way to the races that he'd injured his knee and that now he was a chance of missing the Sydney Cup," Bowman said.

"I was looking forward to Saturday, he had a great chance."

Speed Dubai is rated a $41 chance for the Sydney Cup and with just 51kg is below Bowman's weight range.

Meanwhile, the Peter Snowden-trained two-year-old Shakes remains undefeated from two starts after he flew home to score in the Mahogany Handicap (1100m).

The Viscount colt came into the race after scoring easily at Muswellbrook on March 13.

"He's a nice horse and he arrived here in top condition and I was always confident he'd go well," Snowden said.

"We'll just keep him ticking over and find another similar race for him."