Gai Waterhouse completely understands why there has been Magic Millions Classic support for Aussies Love Sport ahead of the colt's debut at Canterbury on Saturday.

"There should be, he's a good horse," Waterhouse said.

Aussies Love Sport, who makes his debut in the ATC Membership on Sale Now Plate (1200m), could be one of five runners for the Waterhouse stable in the Magic Millions at the Gold Coast on January 12.

Waterhouse also has Certitude heading to the juvenile feature while Sweet Idea and Northern Glory are running in the B J McLachlan Stakes at Doomben on Saturday.

Rockford, an eye-catching runner-up in Listed company at Flemington on debut in October, will try to book his place when he lines up in a maiden at Gosford on Thursday.

Aussies Love Sport has been backed in from $151 to $15 for the Magic Millions Classic and Waterhouse says he has the talent to be a player in major two-year-old races.

His performance on Saturday will decide if he gets a start in the Magic Millions.

"If he doesn't win (on Saturday) we won't worry about it," Waterhouse said.

"We'll concentrate on winning the Golden Slipper with him."

Aussies Love Sport will be ridden by Tommy Berry on Saturday. Berry has won the past two Magic Millions Classics.

The colt will face a solid test because the Canterbury race features the Chris Waller-trained Champagne Cath who was an impressive Rosehill winner on debut.

"I'd probably like it better if it was over 1000 or 1100 metres on Saturday but that's not to be," Waterhouse said.

"He is a very talented colt. He's a big, strong, good style of a horse. He could easily be a Golden Slipper horse."

Waller took Magic Millions hopeful Champagne Cath to Canterbury last Friday night for an exhibition gallop.

She is entered for a Brisbane race on Saturday but Waller said the filly would run at Canterbury.

"She'll go there on Saturday and we'll see how good she is," Waller said.

"She's racing against some new horses and she's got to put two together. If she doesn't she'll probably go to the paddock."