Chelsea are willing to send Diego Costa back to Atletico Madrid - in exchange for Antoine Griezmann.

The Telegraph says the Blues are set to do battle with Manchester United over the France international.

Costa could hand the west London outfit an immediate advantage over their Premier League rivals if a bidding war ensues.

The fiery hitman was heavily linked with a return to Atletico this summer.

And the Spanish giants may well be prepared to let Griezmann leave for Stamford Bridge if it meant Costa moving the other way.