The Godolphin pecking order for the Golden Slipper should be sorted out at Randwick while Gerald Ryan will get a clear idea if he has a genuine chance in the two-year-old showpiece.

Ryan has nominated Perignon and Fireworks for Saturday's Reisling Stakes in which they will be up against Antelucan, Calaverite and Ottoman, three of the many chances John O'Shea prepares for Sheikh Mohammed's operation.

An unlucky fifth in the Magic Millions Classic in January, Perignon will also be nominated for Sunday's Black Opal Stakes at Canberra.

Widden Stakes winner Fireworks needs to perform well to justify owner John Camilleri writing a cheque for $150,000 to put her in the $3.5 million Golden Slipper as a late entry.

"Perignon had a few days in the paddock after the Magic Millions but was kept ticking over with work on the water walker," Ryan said.

"I'll look at the fields for both the Reisling and the Black Opal before deciding which race she runs in.

"She looks terrific and Kerrin McEvoy will ride her.

"Fireworks has done well since the Widden. She is not a big filly but she maintains her weight."

Brenton Avdulla, who rode Fireworks to her come-from-behind win over Lake Geneva in the Widden Stakes, will again be aboard the filly.

Lake Geneva, trained by the Hawkes family partnership, was a fast-finishing third in Saturday's Group One Blue Diamond Stakes at Caulfield.

In Perignon's three starts, she has come out of the gates slowly and mustered speed late.

She wore winkers in the Magic Millions and was still back in the field but settled well during the race. She was shut out of a run at the top of the straight and eventually finished just two lengths from the winner, Le Chef.

There were 10 entries for the Reisling taken on Monday and seven for the colts and geldings division, the Todman Stakes.

O'Shea's Todman entries are Furnaces and Chamarel who will be up against the Golden Slipper market leaders Headwater and Vancouver.