“I have read a lot of speculation about this topic,” said Conte, who said he will assess Costa’s fitness next week.

“I can tell you if there are problems – and I repeat ‘if’ – with players, I am used to solving them in the changing rooms, not outside, not in press conferences.

“Trust me, what I told you is the truth. If we start to think ‘if an offer arrives, if, if, if ...

“I don’t like to answer these types of questions. If, if. We must enjoy this victory. It wasn’t easy to win against Leicester.

“It’s important to respect our victory and our players after a good performance.

“If you want to know the truth, I’m ready to tell the truth. On Tuesday, during the training session, Diego stopped because he felt a pain in his back.

“From that moment he didn’t train during the week. For this season today he wasn’t available for the starting 11 or the bench. This is the reason, the truth.

“I don’t know anything about this [offer from China]. The club did not inform me about this. That can be only speculation.”

And Conte claimed he will not concern himself with questions about Costa’s future at Stamford Bridge after seeing his side open up a seven-point advantage over second-placed Tottenham Hotspur.

“I can’t be concerned about this because today my players showed me a great performance and great spirit.

“That’s very important. When you are able to win this type of tough game – Leicester were champions last season and this season I think their team has improved – it means that I can’t be concerned about anything.

“I must be pleased to work with these players. For sure I want to continue to work with all my players.”

Conte coped with the loss of Costa by deploying attacking midfielders Willian, Eden Hazard and Pedro as a front three without a recognised striker.

He said: “I think it’s important to have another way of playing, playing without a No.9 is another solution.

“That’s important. We played without a No.9 and won 3-0 but, I repeat, it’s important always to play as a team.

“Sometimes changing your playing style is important during a championship.”

Defending champions Leicester suffered a 10th defeat of their title defence but manager Claudio Ranieri praised his players’ effort despite his side flirting with relegation danger.

He said: “I said from the beginning we have to look over our shoulder.

“We are in the battle for relegation. I said that two or three months ago. But we are in good condition and I’m sure now we can get some good points.

“The mentality is right. This team is used to fighting. Three seasons ago they fought to win the Championship, two season ago they survived a relegation battle and last season they won the title. They are used to fighting.

“I’m very happy with the performance. We tried to do our best.”