Anthony Martial will miss Manchester United’s clash with Leicester City after getting injured during the 3-1 defeat against Watford last week.
Martial came off at Vicarage Road after he was fouled in the build-up to the hosts' opener, having earlier sustained an apparent injury in an aerial clash.
According to The Sun, Mourinho said: “Martial is not available. You are wrong because you say concussion.”
United's top scorer with 17 goals last season, Martial has not found the back of the net yet this term for his club but did claim his first France goal against Italy earlier this month.