#1 Neymar = £198,000,000 (Barcelona to Paris Saint-Germain)

Neymar is a 27-year-old left winger who plays for Paris Saint-Germain in Ligue 1. He has also featured 96 times for Brazil since making his debut back in August 2010.
Neymar had already made huge waves when he signed for Barcelona from Santos back in 2013 for a whopping £79m, but to then almost triple that figure four years later by signing with PSG for close to £200m is simply mind-boggling.
It's true that Neymar is one of the best players in the world right now but there's no doubt that his age would have helped the price soar as high as it did. He has plenty left to give the club, and any future clubs, should he choose to move again. Moreover, the 27 to 29 age bracket is regarded by most as a player's peak footballing years, so we could see the very best from Neymar soon.