Giampiero Boniperti: "Playing alongside him was pure fun. Charles was the target man, while Omar used the space to put defenders in trouble. He used to play with socks down around his ankles, without any kind of protection, to show he wasn't scared of defenders. He had an incredible winning mentality."[6]
John Charles: "With Sivori, it was the classic big man-little man partnership. Sivori had huge skill and it was a joy to play with a player as good as he was."
Marcello Lippi: "Whenever we were talking about Juventus, his eyes brightened up."[6]
Humberto Maschio: "He was amazing. A first-class dribbler who had speed and the ability to surprise at any moment."[7]
Roberto Bettega: "He was like an older brother for me. He was my idol when I was a kid and then we became close friends. He was one of the best players in the history of football."[6]
Gregori, Claudio (2005). Omar Sivori—La leggenda del Cabezón [Omar Sivori—The legend of Cabezón]. I libri della Gazzetta dello Sport (in Italian). Milan, Italy: RCS Quotidiani. ASIN B00PLY8LOM.