Adele Amour runs in the Group 3 Ethereal Stakes (2000m) on Saturday in a bid to turn around her form from a disappointing last start effort at Flemington.
El Patroness won the Listed Super Impose Stakes (1800m) at Flemington October 2 and on the strength of that win Adele Amour was heavily supported later in the program but wound up in fifth position.
Currently the assistant-trainer to his father while awaiting the paperwork to be stamped so they can join forces in a training partnership, Tom Sadler said they were terribly disappointing with the filly's effort.
"She just didn't give a kick," Tom Sadler said.
"She led, didn't go that hard after having to do a little work to get across, but she was disappointing in the run home.
"We really feel that she will stay, and she had some really good form around her through Barb Raider and El Patroness and when El Patroness won, we were probably even more confident.
"But I suppose when you do try to make all, you do have a bit on excuse doing all the donkey work for everything else.
"I think we'll have a pretty definitive answer after Saturday when we ride her a bit quieter, not necessarily dragging her out the back, but letting her find her feet a bit more."
Sadler said the Group 1 Kennedy Oaks (2500m) at Flemington on November 4 had been a long-term aim for the filly.