"It was good because he scored twice, including a fantastic free-kick, and he worked so hard," the Foxes boss said.

"Maybe he is tired of hearing dilly ding dilly dong all the time," the Italian added of Mahrez, who scored Leicester's third with a penalty.

"Now we have to stay calm and put our mind to the next match on Saturday."

Mahrez had scored once in four Premier League appearances before Wednesday's European tie.

"Dilly ding dilly dong" is how Ranieri described the imaginary bell he would shake when he thought players were "sleeping" last season - before they stunned the football world by claiming the Premier League title.

Speaking to BBC Radio 5 live after his side's first Group C match, the Italian added: "With Rostov [of Russia] we are the only two teams who have never played in the Champions League before.

"For us it is very tough to play against teams with very good experience, like Brugge, FC Porto and FC Copenhagen.

"It's not easy but it's OK. We started well, and that gives us confidence."

Foxes winger Marc Albrighton got the opener against Belgian champions Brugge on Wednesday and said scoring his club's first ever Champions League goal was "just how I'd seen it in my dreams".

"To score the goal was an unbelievable feeling," the 26-year-old added on BT Sport.