Nicolas Jackson

Chelsea's current valuation of Nicolas Jackson is proving to be a stumbling block for interested parties.

The Senegalese international was left out of Chelsea's squad for the game against Real Sociedad due to the possibility of him leaving the club.

According to Fabrice Hawkins, Chelsea value Jackson at £60m (€69m) and that figure is proving to be too high for teams such as Atletico Madrid, Aston Villa and Tottenham Hotspurs.

Both Liam Delap and Nicolas Jackson have interest from multiple clubs in England and abroad, and there is a strong possibility one of them will be sold this summer.

Chelsea are prepared to sanction Nicolas Jackson's departure this summer, with Aston Villa among the clubs who have held talks over a move for the striker.

Aston Villa are reportedly preparing to break their club transfer record to sign Chelsea forward Nicolas Jackson, with the Senegal international emerging as Unai Emery's leading attacking target. Villa are said to have held "positive discussions" over a move.