The sell-on clause re-entered the football supporters' vocabulary earlier this week after John Stones confirmed his £47.5million transfer to Manchester City.
Amid Stones posing with the shirt and carrying out the requisite media duties, the news broke that Championship side Barnsley would be major beneficiaries of his move to the Etihad, pocketing over £7m.
But Stones's deal is far from the first to involve such a clause. Here Sportsmail remembers 10 of the most high-profile sell-on fees in the Premier League era.
Raheem Sterling - £49m, Liverpool to Manchester City
Sell-on clause: Queens Park Rangers received £12.