Manchester City and Liverpool could go head-to-head for the signature of Sevilla centre-back Diego Carlos - but Chelsea may hand the former an advantage by snapping up one of the Citizens' current defenders.
Chelsea could help City to offset some of the fee it would take to sign Carlos, with it claimed by the Daily Star that a £35million swoop for City defender John Stones is being weighed up.
Sevilla only signed uncapped Brazilian Carlos a year ago for around £14million in renowned sporting director Monchi's first addition since his return to the Andalusian club.
And the 27-year-old has proven an astute piece of business, establishing himself as one of the best defenders in Spain since then.
He missed just three La Liga matches all season, helping Julen Lopetegui's side to finish fourth on the same points as third-placed Atletico Madrid and qualify for the Champions League.
With his value having soared in the past 12 months, the release clause of around £70m inserted in his Sevilla contract is appealing to both Liverpool and City, say the Star.
That leaves just Van Dijk, Joe Gomez and Joel Matip as senior options with the latter having been dogged by injury problems in his four-year stint at Anfield.
Klopp may however opt to promote promising youngsters Sepp van den Berg or Ki-Jana Hoever to fourth-choice centre-back instead, having suggested his side will not be busy in the transfer market.