An international teammate of Sadio Mane, the 43-cap Senegal ace could now be made available for £69m this summer as Manchester United and Liverpool potentially look to bolster their backlines with the strong centre-back.
Signing Koulibaly would likely oust both Joe Gomez and Joel Matip as favoured the favoured partner to play alongside Virgil van Dijk.
Albeit a price drop, £69m for a 29-year-old defender is still a hugely significant outlay and not one Liverpool are likely to press on with this summer.
Instead, reliable backup options are needed, at far less expenditure than a deal for Koulibaly.
Perhaps 18 months ago this would have been of interest to Klopp and co.