#3 Adaptivity
One reason why many people believe Cristiano Ronaldo is the best player in the world is because of his ability to prove himself in different leagues, against different opponents with diverse tactics and under different circumstances.
His time at Manchester United was great. Despite the physicality and the pace of the English Premier League, the Portuguese managed to succeed at the Old Trafford and even won the coveted Ballon d'Or award there. He transferred his incredible performances to the Spanish League, where he established himself as one of the greatest players in the history of the game.
His ability to quickly adapt to the various situations surrounding him qualify him as the type of player that can succeed anywhere and the Seria A will prove no exception.