The 23-year-old has struggled to impose himself at San Siro since his summer transfer from Velez Sarsfield, but played a part in both of his side's goals in a sparkling substituteperformance to ruin Davide Ballardini's return to the bench, garnering praise from his mentor after the match.
"I've used him twice as a playmaker, but tonight I decided to deploy him on the right because he can shoot at goal and thread quality balls through," Ranieri told Sky Italia. "I really believe in him because he has incredible technical skills."
However, Ranieri admitted that his team rode their luck with Thiago Motta's opener, but felt that they were finally gifted the rub of the green after being on the receiving end of numerous contentious refereeing decisions this season.
"Was Thiago Motta's goal offside? Yes, that is true," he confessed. "The linesman did not see who touched the ball, but for once we can smile."
The former Roma and Chelsea boss then gave his analysis of the encounter, where he felt that Inter deservedly picked up all three points, and is confident Wesley Sneijder will be available for their midweek Champions League tie against Trabzonspor, despite his knock.
"It was a game where we controlled our opponents, who didn't have a shot on goal in the first-half," he continued, "Then in the second half I brought on Alvarez, and I am pleased with our [overall] performance.
"Sneijder's injury? He suffered a [muscle] contraction, so I thought I'd [take him off and] preserve him for Tuesday.
"I have learned today that we cannot have a quiet day, and we mustcontinue to fight, because of the league [aspirations]," he concluded.
Inter have now climbed to 16th place in Serie A following the win.