Paul Warne's praise for two-goal Rotherham United striker Michael Smith

Smith has been out of favour since early in the season but returned to the side to inspire the emphatic League One win over the previously-unbeaten Sky-Blues at AESSEAL New York Stadium.

The striker struck from the penalty spot in each half and gave a towering display as Warne's men, showing several changes to the team beaten at Bristol Rovers last week, gave their best performance of the season.

"I thought Smudge was excellent," said Warne whose team remain in 13th spot despite taking all three points. "He won all first contacts, which is essential because you then get people gambling off him. 

"His effort to press and compete, with Matt Crooks around him, was hugely important. 

"I was disappointed at Bristol Rovers last week. I've made no bones about that. Our second-half performance was lack-lustre. 

"I thought today was more like it. We played like a 4-4-1-1, a bit reminiscent of last season. Smudge's performance definitely deserved a couple of goals but other people were brilliant as well."

Rotherham's two other goals came from midfielder Crooks who was a constant threat playing just behind Smith.

Coventry boss Mark Robins, a former Millers player and manager, said: "I thought we were second best from start to finish. You could see their intent from the first minute."