Liverpool have identified a couple of possible replacements for Georginio Wijnaldum in the summer.
The Dutchman has been with the Reds for the past four and a half years, but his future is uncertain with his contract expiring in June.
It has recently emerged that the midfielder has declined an extension and he is eager to join Barcelona on a free transfer.
Sanches, meanwhile, has revived his career since his permanent switch to Lille from European champions Bayern Munich in the summer of 2019.
He had a poor loan spell with Swansea City in the Premier League three years ago, but has since improved into a more consistent performer.