Sheffield United boss Kevin Blackwell is expecting a stern test from Derby at Bramall Lane on Saturday.
The Rams will head to South Yorkshire in buoyant mood after defeating bitter rivals Nottingham Forest 1-0 at Pride Park last weekend.
And Blackwell is full of respect for Nigel Clough's side after they overcame their high-flying neighbours.
"That was arguably their biggest win for two years so they will be full of confidence," said Blackwell.
"They have quality players from back to front. In Stephen Bywater they have a highly-competent goalkeeper, they have Nicky Hunt and James McEveley, who have Premiership experience.
"Then there's Robbie Savage and Kris Commons, who both have quality, and we know what we will get from Rob Hulse."