Kevin De Bruyne will miss four weeks with a hamstring injury he suffered in Saturday's win over Swansea City.

De Bruyne was substituted with a suspected muscle injury in the 81st minute.

De Bruyne would miss the Champions League game against Celtic on Wednesday as well as Premier League games against Tottenham and Everton, while he would be a major doubt for the trip to Barcelona on Oct. 19.

Speaking after Saturday's game, Pep Guardiola had said: "I think he's injured.

"Tonight we are going to come back to Manchester, tomorrow the doctor is going to see. It's a pity. It's important for us. For how he reacted it looks muscular but I'm not a doctor."