March said: “Everybody came through OK against Rochdale, which is good news.”
He added: “On paper, Leigh have probably got the strongest squad in the Kingstone Press Championship.
“It’s a massive challenge for us, but we’ll go in as underdogs and you’re always dangerous when you’ve got that tag.”
The Centurions are aiming to maintain their perfect start to the season with a fourth win in four matches.
Coach Paul Rowley said: “We’re happy with what we’ve done so far, but we’ve also been pretty critical of ourselves at training this week. We really do need to improve in some areas.
“Keighley are a well-rounded team, they’ve started pretty well and they’ve not got many chinks in their armour.
“They scored some fantastic tries last week and I was really impressed with their go-forward, particularly from Jodie Sheriffe.”
Leigh have no new injury concerns to contend with ahead of the trip to Cougar Park.