I hope Mourinho was just talking out of frustration from the result.
I don't know how he would know he'd be out for a while or not - especially as it's not like Son pulled up at any point during the first half and if it was a serious tear that would keep him out for a while, we'd have certainly seen it.
I reckon he probably felt it tight at half time and all types of massaging, stretching and physio within that 15 minutes didn't alleviate the pain so they took him off and Son was perhaps still feeling it at 90 minutes so Mourinho is expecting the worst.
Fingers crossed anyway
I don't know how he would know he'd be out for a while or not - especially as it's not like Son pulled up at any point during the first half and if it was a serious tear that would keep him out for a while, we'd have certainly seen it.
I reckon he probably felt it tight at half time and all types of massaging, stretching and physio within that 15 minutes didn't alleviate the pain so they took him off and Son was perhaps still feeling it at 90 minutes so Mourinho is expecting the worst.
Fingers crossed anyway