Manchester United make Mason Greenwood decision that could earn them millions after £26m sale

Manchester United confirmed that Mason Greenwood has completed a move to Ligue 1 side Marseille.

The 22-year-old has signed a five-year deal with the club, following his season-long loan in La Liga with Getafe, his spell in Spain saw him contribute six assists and score 10 goals in all competitions, prompting interest from Roberto De Zerbi's side and Lazio.

United opted to sell the academy graduate this summer and they believe his departure has delivered on their commitment that his career would be better served elsewhere. Greenwood becomes the fourth player to be offloaded this summer following the departures of Alvaro Fernandez, Donny van de Beek and Willy Kambwala.

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Erik ten Hag's side have banked £26.6million for the sale of the 129-appearance winger and as well as the profit, the club have inserted a sell-on clause which will see them earn a sizable share of any future transfer.

Clauses of this ilk have proven to be ingenious for club to gain additional revenue. Liverpool, in particular, have reaped the rewards of the transfer addition and this summer, Maidenhead United hit the headlines after pocketing a healthy gain for Wolves' sale of Max Kilman to West Ham United.

The fifth-tier club sold Kilman to Molineux for £40,000 in 2018 and he became the Hammers' third signing under Julen Lopetegui - moving to the capital for £40milllion with the Magpies earning £4m following a 10 per cent sell-on clause.

In a statement on Thursday, United confirmed the departure of the 22-year-old, they wrote: "Mason