Chelsea are considering buying back Nathan Ake from Bournemouth.

The Sun says Chelsea have a buy-back option on the Holland ace, 23, and regard him as one of the best defenders in the Premier League.

Blues boss Maurizio Sarri will look to bolster his back line with Gary Cahill set to depart and David Luiz's contract up.

Ake started at Chelsea's academy aged 16 but had loan spells at Reading, Watford and Bournemouth before joining the Cherries for £20million.

He is now a key part of the first team but could return to his old club in a £40million deal.

And Eddie Howe's Bournemouth are now braced for an approach from Chelsea to take back one of their best academy products.