Jose Mourinho has suggested Ricardo Carvalho "should have an IQ test" after the Portuguese defender's outburst.
Carvalho said the Chelsea manager's decision to drop him for the first game of the season was "incomprehensible".
But Mourinho responded: "Carvalho seems to have problems understanding things, maybe he should have an IQ test.
"I am not happy to have heard about this through the papers. I think he is temporarily angry but I will speak with him. We can't have this kind of thing."
Mourinho, who is expected to fine Carvalho two weeks' wages, said he had warned his players they would need to be patient.
"Ricardo has worked with me for four years and I do not understand these quotes, he probably needs to see a doctor," he said.
"I told the players this summer they will need to have patience because we have a great squad and everyone needs an opportunity."
But Carvalho told Portuguese newspaper A Bola he could not understand why he was dropped in favour of William Gallas.
"I want to know why I didn't play," he said.
"How can I explain when I don't understand it? Sincerely, I gave a lot of thought and time to myself but cannot find a valid explanation. It's totally incomprehensible."