Diego Costa insists he is not upset with Antonio Conte after Chelsea confirmed they have agreed to sell the striker to Atletico Madrid.

The 28-year-old Costa will initially join Atletico on loan but the Spanish club has an obligation to buy the player for £57.2 million next summer.

Costa will be unable to play for Atletico until January due to their transfer ban but is able to train with his new teammates.

As part of the deal, Chelsea will not subsidize any of Costa’s £185,000-a-week salary.

And speaking before boarding a flight to Spain, Costa stressed he was not upset at the way Conte had treated him.

He told Splash News: “There’s nothing of the sort there, I’m not upset with anybody.

“I have no bitterness towards anyone. Everything is cool.”

He then sent a message to Chelsea supporters saying: “Everybody knows how much I love the fans.”

Costa refused to return to London, opting to remain in his native Brazil until an agreement was reached with the club he spent four years at before joining Chelsea in 2014.

The striker was warned by Spain coach Julen Lopetegui that he risked missing next summer’s World Cup if he didn’t play regularly.

Atletico is currently under a transfer ban from FIFA which prevents them from registering players until January and which means Costa’s second debut won’t happen until after the new year.

Phil Neville claims Diego is a better striker than his replacement Alvaro Morata.

He said: “I would rather have Costa than Morata in my team at this moment in time, to be honest with you.

“I think he is better suited to the English game – Morata has great potential, but if you were an opposition manager, you would rather be facing Morata than Diego.”