Connections of Main Sequence will wait until next week before deciding whether to aim the Derby runner-up at the English St Leger.
The colt will be confirmed on Monday for the oldest of Britain’s five Classics at Doncaster on Saturday week, in which he would meet his Epsom conqueror Camelot.
However, he also holds an alternative engagement in the Prix Niel at Longchamp the following day.
Trainer David Lanigan will discuss plans with owners the Niarchos family before announcing which will be his stable star’s next race.
“He’s still in the Prix Niel and the Leger. We will leave him in both races and we will make a decision next week,” said the Lambourn trainer.
“I’ve got to speak to the owner and then make a final decision.
“He’s in great form. He worked on Wednesday and will do his last hard piece of work on Saturday.”
Since chasing home Camelot in the Derby, Main Sequence has been an unlucky fourth in the Grand Prix de Paris at Longchamp and a strong-finishing second in the Great Voltigeur Stakes at York.
