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Liverpool will insist upon a buy-back clause as they prepare to let Sergi Canos leave Anfield.

The Reds have accepted bids of £2.5m for Canos from both Bristol City and Norwich, with the decision now in the hands of the player as to his next move.

But the club has also sought to protect themselves in the event that the 19-year-old goes on to prove himself a star over the next few seasons.

Any deal will be structured to include add-ons based on appearances and achievements, a sell-on clause and, significantly, a buy-back option too.

Such a practice is commonplace on the continent, particularly in Spain. Real Madrid have bought back the likes of Dani Carvajal (Bayer Leverkusen), Casemiro (FC Porto) and Alvaro Morata (Juventus) after originally allowing them to move on in search of first-team football.

Barcelona, meanwhile, have just re-signed winger Denis Suarez, who spent last season with Villarreal.

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The benefit of a pre-negotiated clause is that it enables a club to secure the buy-back for a fee lower than the market would normally dictate.

Barca, for example, paid less than £3m for Suarez, while Real Madrid spent £23m on Morata. Both would be expected to fetch significantly more were they to be sold on again this summer.

In Canos’ case, it is unclear what the buyback fee will be at this point. It is common, though, for the fee to be staggered, rising across three seasons for example. Barcelona secured such an arrangement when selling Gerard Deulofeu to Everton last summer.

Liverpool will be sad to see Canos move on. The winger’s agent had verbally agreed terms on a new contract earlier this year, only to then up his demands later. With Liverpool’s hardball negotiating strategy when it comes to young players, that was never likely to end well.

Canos enjoyed a productive loan spell with Brentford in the Championship last season, and made his full Reds debut as a substitute on the final day of the campaign at West Brom. “The best 10 minutes of my life,” was how he described the experience to the ECHO.

He cost Liverpool a compensation fee of £350,000 when joining from Barca in 2013 and is rated by plenty within the club.

His progress will be monitored closely after he leaves. And who knows, maybe one day he will return?