Racing NSW stewards will resume the More Joyous inquiry, involving Gai Waterhouse and John Singleton, at Racing NSW's headquarters on Monday morning.
Stewards took more than six hours' evidence on the first day of the inquiry and are expected to question rugby league immortal Andrew Johns, former jockey Allan Robinson and brothel owner Eddie Hayson when it reconvenes.
During last Monday's explosive evidence it became clear that a series a phone calls had been made between the trio in the minutes before and after the race in which the champion mare finished second last.
Johns and Robinson both indicated on Tuesday they had changed their stance and would appear at the inquiry. Hayson is expected to make himself available but has not yet done so.
Johns will a key witness as it was a conversion he had with bookmaker Tom Waterhouse that is central to the inquiry.
Robinson rang Singleton on race day to pass on that Johns had told him Tom Waterhouse believed More Joyous could not win.
Tom Waterhouse denies the accusation and tensions boiled over at the inquiry on Monday with an agitated Gai Waterhouse accused Singleton of being a drunk, and more insultingly according to him, old.
Singleton said his respect for Johns had diminished after the affair because he didn't appear last Monday.
"At this stage I think that Andrew owes me an apology: he needs to front up, needs to man up," Mr Singleton said in an interview with Channel Seven.
"I've always trusted Andrew, I've known him since he was 14 years old. But geez, how can you be so strong on the field and so weak off it?"