#1 Kylian Mbappe (From Monaco to PSG)

PSG broke the world transfer record when they bought Neymar from Barcelona in the summer of 2017. They followed it up with the signing of Kylian Mbappe from Monaco. In order to stay within the Financial Fair Play limits, PSG decided to sign him on loan this season and pay the transfer fee next term.
The 19-year-old enjoyed a breakthrough season in 2016-17 with Monaco. He scored a remarkable 26 goals in 44 games as they won the league title and reached the semi-finals of the UEFA Champions League. He won the 2017 Golden Boy award and was also voted into the 2017 UEFA Champions League Team of the Year.
An incredibly pacy attacker with a bunch of tricks up his sleeve, Mbappe can play on either flank as well as a centre-forward. His move to PSG took him to greater heights, with world-class players like Neymar and Edinson Cavani alongside him.
The Frenchman has 19 goals and 14 assists in 38 games this season and PSG are all set to win a domestic double. He is also set to play a vital part in France's exploits at the 2018 FIFA World Cup in Russia this summer.
Video: Mbappe's debut season at PSG so far