The Italian, an all-rounder who can attack and defend, can cover the full position of two wings from full-back to full-back at the peak.
Born in the Italian city of Como, he was recognized by Juventus in 1999 after playing for Como and Bari, and then brought him to Turin.
Played as a right forward, but lost to Roma in the league for two consecutive years to be the runner-up, and only tasted the championship in the third year.
After being injured in the 2002 World Cup, he found that his position was taken away by Camoranesi, so he had no choice but to change to left-back at Lippi's suggestion, but he did not expect to be out of control, and became one of the world's top left-backs in a short period of time with his speed, physical fitness, offensive and defensive balance and the ability to open the bow left and right. At the 2006 World Cup, he was placed by Lippi at right-back to help Italy win the Hercules Cup. After Juventus encountered the "telephone gate incident", he left to play for FC Barcelona in La Liga and AC Milan in Serie A.