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Chelsea possess the Premier League ’s most profitable academy, but the Blues and their fellow Big Six members fall some way behind the rest of Europe’s top sides.

The CIES Football Observatory have analysed how much income clubs across the world have received from the transfer of players who graduated from their academies, having been there for at least three years between the seasons of their 15th and 21st birthday.

The figures include any potential future add-ons from the transfer deals that have been done in the past seven years for each clubs academy graduate sales.

Their analysis puts a surprising name at the top of the leaderboard, with none of the so-called Big Six Premier League clubs featuring in the top seven of the list.

Portuguese giants Benfica sit at the summit, having raised £317million from sales of academy players, though 32 per cent of that comes from Joao Felix’s £113m move to Atletico Madrid.

Real Madrid are second, by some way, having raised £276m, of which Alvaro Morata’s move to Chelsea in 2017 forms the biggest chunk.

Kylian Mbappe’s world-record move to Paris Saint-Germain means that Monaco are third, with the Frenchman’s fee going