Alain Djeumfa says the Cameroon women's team needs to avoid errors to upstage England in the Round of 16 in Valenciennes on Sunday.
A 2-1 win over New Zealand in their final Group E encounter was enough to send the Indomitable Lionesses through to the knockout stages for the second time on the bounce.
At Stade du Hainaut, the Africans will be hoping to avoid back-to-back Round of 16 defeats when they lock horns with Phil Neville's side.
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The coach, who was the team's fitness trainer at their maiden outing in Canada four years ago, is confident about their chances of seeing off the English side.