Costa is highly unlikely to play for Chelsea again after a serious decline in his relationship with Conte over the past number of months.
'Chelsea have offered me to several clubs, but I was very clear with them, ' he explained. They want to sell me to China or other teams.
"It's great. I prefer to laugh", he said.
"I have not deleted the message", he added. Why won't they let me go if they don't want me?
He has scored 59 goals - 52 in the Premier League - across 120 appearances for the Blues.
"If we don't get a striker, then it's all about young players".
'I said that if I'm not part of the manager's plans, I would like to choose my destination.
"I didn't want to leave".
"I'll come back stronger".
"From what I know, Atletico Madrid want to sign him and he wants to join", he told a news conference. They want him to maintain his fitness so that he can pass the medical at any club he is moving to.
"So he'll be checking his texts regularly to see if there's a change of heart by Conte - or a change of boss by Chelsea".
However, we understand that Chelsea expect Costa to return to the club, get back in training, get himself match-fit and put himself in contention for selection.
"Whatever happens, the Costa issue must be resolved quickly", Keown told the Daily Mail.
Chelsea made a disastrous start to the new season after the nine-man English champions succumbed to a surprise 3-2 loss to Burnley at Stamford Bridge last weekend.
Koeman was asked about those comments on Wednesday, and issued the following response.
Atleti are currently under transfer embargo until January, but Costa doesn't care one iota. You are never going to win.