Quagliarella opened the scoring from distance and set up Alessandro Matri for the second.
"The goal was instinctive," he told the media. "I trapped the ball, saw that I had space and so I aimed for goal. I'm very happy, as it's wonderful to break the deadlock against such a big team.
"I ran to the bench to hug Anelka because he asked me to in the locker room. It's good to remember those on the bench, as they also work hard all week.
"The Coach has been rotating the strikers for two years now, so we are all relaxed and now our opportunity will come. Nobody here gets annoyed when they don't play, as the important thing is to be ready when called."