An irritated Jose Mourinho revealed Marouane Fellaini played with an injury while on international duty.
The Manchester United boss, who claimed he 'feels weak' without the central midfielder, said Fellaini remains a doubt for Tuesday's Champions League clash against Basle.
The Belgian had picked up a problem in his calf before last Monday's victory against Greece but Roberto Martinez selected him anyway.
'Fellaini didn't train yesterday and let's see if he can today,' Mourinho said on Monday afternoon.