Long said: “Even when we’re winning by large margins, we’re still not happy – and that’s a good sign.”
He added: “Leigh are a top side and they’ve already got silverware under their belt.
“It’ll be an interesting fixture and a tough one that we’re all looking forward to, but we know we’ve got it in us. We showed that against Sheffield.”
Centurions coach Paul Rowley said: “Featherstone are back on form. They’ve got a strong side and for anyone to beat them, they’ve got to be good.”
Adam Higson (suspended) is also missing for the visitors.