Manchester City are set to receive EUR800,000 from Barcelona as part of the deal that brought Denis Suarez to the Nou Camp, reports Goal.
Having spent two years at City, the midfielder returned to Spain in 2013 on a four-year contract.
Barca paid EUR3.2m at the time – plus clauses – and one of those has now been activated after Suarez made his 40th appearance for the club in the 2-1 win at Getafe.
City reportedly receive EUR800,000 for every 10 appearances up to 100.
It means price for the former Spain Under-21 international could rise to a total of ?8.5m.
Barcelona signed Suarez from City in 2013 but he failed to make a first team appearance and was shipped out to Sevilla on loan after a season with the club’s B team — and then sold onto Villarreal.
However, the Catalans included a ?2.85m buy-out clause, which they activated after 12 months.