In 2021, Mark McGuinness, a former Arsenal academy graduate, made the decision to depart from Arsenal after dedicating a decade to their academy. He joined Cardiff City as the next chapter in his professional career.
Included in the transfer was a sell-on clause which was understood to be 30 per cent of any profit Cardiff made when selling the player.
McGuinness completed the £10m move to Luton this week as the Gunners are set to earn from the centre-back’s move, which will boost their finances ahead of the transfer deadline day next week.
Arsenal are well known for their sell-on clauses in deals involving academy players leaving the club with their most recent one including the deal that saw Mika Biereth move to Sturm Graz for £4m in July. A