#1 - Neymar JR

Neymar stole a huge part of the attention in the summer transfer window, after Brazilian channel Esporte Interativo broke the news of an agreement of his transfer from FC Barcelona to Paris Saint Germain.
The world struggled to believe the (at that time) rumour, but the move materialized soon enough, as the French giants triggered his release clause of nearly £200 million. Neymar is widely regarded as the third best player in the world, and the heir to Cristiano Ronaldo and Lionel Messi's throne.
The Brazilian's biggest advantage over the two might well be his age, as he is only 25-years old, while the Liga stars have already hit their thirties.
By signing the Brazilian, PSG are not only guaranteed quality for this season, but on a long-term basis as well. Neymar has demonstrated his ability to lead a project on his own, and his signing will be essential in leading the French side to the decisive stages of the Champions League.
In just 5 games, the Seleção star has already reached 5 goals and 5 assists. Talk about an immediate impact.