Radja Nainggolan - Inter Milan
Snubbed by Belgium for their World Cup plans, Nainggolan, who has joined Inter from Roma, has points to make. But then the high-energy midfielder always plays like a man on a mission.
Leo Bonucci - Juventus
Last summer, Bonucci, the accomplished central defender, joined AC Milan from Juventus. Now he’s gone back, apparently ready to mend a fractured relationship with Juve manager Max Allegri.
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Read more:
Serie A preview: Ronaldo may find goals harder to come by in the land of tough-as-teak defenders
Cristiano Ronaldo scores on Juventus debut - in pictures
Ronaldo sparks Champions League dreams after Juventus arrival
[ Cristiano Ronaldo: Players my age go to China or Qatar ]
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Justin Kluivert - Roma
Twenty-one summers after his father, Patrick, moved to Serie A and AC Milan, Justin, a winger, has left Ajax for Roma. He’s only 19 but the Netherlands international has pace, poise and potential.
Carlo Ancelotti - Napoli
Three Uefa Champions Leagues, plus league titles from Italy, England, France and Germany, Ancelotti is the Ronaldo of coaching. After nine years away from Italy, the sage is back, with Napoli.
Kevin-Prince Boateng - Sassuolo
Sassuolo, expecting a battle to stay safe in Serie A, have become the 10th club of the maverick Boateng’s much-travelled, often controversial and occasionally brilliant career. Expect fireworks.