Calzona said: "We've always conceded goals since I've been there, it's something I don't like. There's too little time to take care of the details, it's done by priority. We're also fixing this because we conceded little tonight.
"A bit of bad luck on the scoreboard too, but if we continue like this we are on the right track.
"There's a bit of disappointment because we created a lot. In the locker room I told the boys that this is the right path, with this attitude we win matches. I'm happy with Zielinski's performance, I'm happy to have found him again."
He also said of Victor Osimhen: "The match against Juve was a strong one on his part. We played 4 matches in 10 days, of all the data against Juve were the scoring chances. It's normal that a player who has been in the Cup for more than a month of Africa has a slight decline.
"I am very satisfied with him for the things I ask of him, he is working very hard. He is a very important player for us."