#5 Arsenal - Toby Alderweireld
Arsenal have some gaping holes in their defense, and Toby Alderweirald would be the perfect player to help cover those up.
Unai Emery has improved Arsenal's attack and the Gunners look absolutely sensational in the final third, but the same can't be said about their defense. So Alderweireld is a no-brainer, really.
Alderweireld would fix all of Unai Emery's defensive problems. He would most probably be paired with Greek international Sokratis Papastathopoulos, and the two would make a great centre-back pair.
The Belgian on his day is definitely one of the best in the world. He is also solid on the ball and can help kick-start attacks with his freakishly good pass accuracy.
Alderweireld would indefinitely solve the Gunners' defensive problems; he is the kind of defender the London club have been craving for years.