Trainer Michael Nolan believes it is a make-or-break day for in-form mare Angel Dancer at Eagle Farm.
Angel Dancer is unbeaten in her three runs for Nolan in benchmark and Class 6 races.
She makes her open company debut on Saturday in the Moet & Chandon Hcp (1400m) which includes several stakes race winners.
Nolan also hopes premier jockey Jeff Lloyd has made the wrong decision getting off Angel Dancer to ride Zin Zan Eddie in the race.
"I have made no secret of the fact I have a big opinion of Angel Dancer. She is a lovely big mare. But Saturday will be real test for her. She has been good in restricted class races but now she faces the better horses," Nolan said.
"If she measures up we might start talking about going to Sydney for some carnival fillies and mares races but until she does it on Saturday that is all in the future."
Angel Dancer is drawn in the widest half of the field in barrier eight but that doesn't worry Nolan.
"She has been winning by coming down the middle of the track anyway. Jeff was keen to get off her to ride Zin Zan Eddie but we have got Jim Byrne so lose nothing in the change," Nolan said.
Angel Dancer was originally trained by Peter Moody and then went to Shane Iverson.
Nolan inherited Angel Dancer when Iverson retired.