Roger Varian is considering giving William Hill St Leger contender Defoe an outing in the Betfred Geoffrey Freer Stakes at Newbury on Saturday.
The Newmarket handler has earmarked the extended one-mile-five-furlong Group Three contest as a possible stepping stone towards an outing in the final Classic at Doncaster next month.
Since returning to action, the son of Dalakhani has won each of his three starts with his most recent victory coming in a Listed race at Hamilton.
Varian said: "Defoe is in good form. He worked well with Andrea (Atzeni) last Saturday morning. The St Leger is our big goal with him.
"We might think about running him in the Geoffrey Freer at Newbury on Saturday before that though."
The Charlie Appleby-trained Frontiersman and Brian Meehan's 2015 race winner Agent Murphy are among his possible rivals at this stage.