"It was the true Leicester today," Ranieri said proudly.
On Wednesday, albeit with a second-string squad, Leicester had been appalling in their record 5-0 thrashing by Porto in the Champions League and Ranieri admitted he and the players had thrashed out the problems for an hour after the game.
So it was that a new-look Leicester should emerge, looking very much like the old Leicester: not worrying about lack of possession but striking quickly and inventively on the counter and defending resolutely.
"The big champions react at the right moment," Ranieri enthused. "We know when we play well we can win. Today they made an effort for the team. That is what I love."
The victory, which also featured a goal for old favourite Andy King, offered the tantalising prospect that Leicester could now go on and produce the sort of performances they had hitherto saved largely for Champions League nights.
"The next matches are very important until Christmas because we are in a battle for relegation," Ranieri added, with his side still only four points above the drop zone.
His old smile was back, though. "I said I need warriors and they showed me what I wanted to see," he beamed.