#4 Radja Nainggolan (Inter Milan)
The 'Ninja' has made a tremendous impact in Serie A since his days at Cagliari. After his sensational move to Inter from Roma earlier in the summer, the Belgian has featured in only one game for the Nerazzurri's this season after being sidelined due to an injury.
Nevertheless, he returned stronger than ever in weekday 3 against Bologna, inspiring a 0-3 win for his team as he opened the scoring. Regarded as one of the most complete midfielders in Europe, Nainggolan's leadership skills and never-give-up attitude make him a must-have for every top club in the world.
His fierce style of play, his ability to play in almost every position in the midfield area and most importantly, his offensive as well as defensive qualities can make Nainggolan Inter's driving force.
Last season, the 'Ninja' helped Roma not only with his tenacious defending but also by creating dangerous attacking situations. He scored 4 times and provided 8 assists while maintaining an 83% pass accuracy and almost 2 key passes per game throughout last season.
A perfect fit for every role in the midfield, Nainggolan is surely Inter's most important acquisition in the latest transfer window.