Jadon Sancho
Up first on the list is Jadon Sancho, who signed for Manchester United from Borussia Dortmund for a total fee of £75 million.
So far, Sancho has yet to live up the billing that his price tag might suggest. He has struggled to adapt to the physicality of the Premier League – explosivity is not his strong point.
Instead, Sancho is a more technically adept player than many of his Premier League contemporaries. He possesses a skillset that makes him more suited to slower-paced leagues – but he is slowly growing into England’s top flight.