The Belgian midfielder has injured his nose and eye socket after clashing with Antonio Rudiger in the Champions League final in Porto.
He underwent a minor surgery that allowed him to play on the grounds but he is playing through pain in the Euros and would have to continue to do so for a while.
De Bruyne told reporters on Thursday: “I don’t feel anything on the left side, like after a visit to the dentist.
“My nerve is very badly affected, which could take six months. It’s not a comfortable feeling, but the most important thing is that I can play.
“The last two months have been up and down for me with minor injuries. After that fracture in the nose and eye socket, it was a bit of a wait.
“But luckily I came back in the fastest way. There was very good intensity for half an hour, [against Denmark] then I felt it. But I’m glad I was able to play.”
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