Leicester boss Claudio Ranieri claims he was confident that his side would score after they beat West Brom in a five-goal derby thriller on Saturday.
Albion went into the half-time break with a slender lead courtesy of Salomon Rondon's opener on the half-hour mark at the Hawthorns.
But the Foxes hit back after the interval as Riyad Mahrez bagged a brace in the space of seven second-half minutes to hand them initiative and Jamie Vardy kept up his impressive scoring rate with their third goal on 77 minutes.
Rickie Lambert converted from the penalty spot with six minutes remaining, after Callum McManaman had been brought down by Nathan Dyer, to set up a nervy finish in the West Midlands, although City came away with victory for a sixth time this season after falling behind.
Speaking to the media after the match, a delighted Ranieri said: "It was important to win today against a good team.
"We know how difficult it is to win here, they won the last two games 1-0 and were very confident. But we were confident of doing something good.
"I don't think we deserved to lose the first half, we created good chances to score and from their first chance, a set play, they score a goal.
"We were playing well and, during half-time, I told the players to carry on because sooner or later we would score a goal. I'm very pleased with the performance."