£58m Man Utd flop, 4 £100m+ superstars: The 11 biggest under-21 transfers
The biggest and best football clubs from around the world are all trying to find the next superstar as they look to secure signings for the future. Taking a gamble on a young, up-and-coming talent is often expensive, as the players below show. But which youngsters were signed for the largest sums? With the help…