Kylian Mbappe's move from Paris Saint-Germain to Real Madrid generated significant wealth for the Frenchman - but he could have earned far more by staying put.
Southampton may be enduring potentially the worst ever Premier League season but one ray of sunshine has been the emergence of talented teenager Tyler Dibling.
Trent Alexander-Arnold is set for a sizeable pay rise once he swaps Liverpool for Real Madrid at the end of the season, but won't be among his new club's highest earners.
Manchester United fans have been given more insight into the skillset of 17-year-old striker Chido Obi, who has featured in four first-team games since last month.