#1 Zlatan Ibrahimovic
Zlatan is arguably the player who had an even impact at all three of the clubs, unlike some on this list. The Swede has travelled many times on the continent and stopped in Italy three times.
Juventus signed him in 2004 after his performances for Ajax in the Eredivisie. He was in Turin for two seasons and left them due to the match-fixing allegations and relegation like the aforementioned Vieira.
Inter signed him for about €24 million, and his goals propelled them to three successive league titles. Barcelona came calling in 2009, and he moved to Spain for a huge fee of £59 million. He could not stay there for long, however, as his relationship with coach Pep Guardiola turned sour.
He moved back to Italy, this time to Milan. Goals followed, 56 of them in two seasons along with his fourth Serie A title. PSG signed him in 2012 to bring the curtain down on his time in Italy.
Ibrahimovic has never been known for his loyalty, but his tremendous ability was on display at all three major Italian outfits.