Injured Man United striker Martial to miss FA Cup final

"Assessments have revealed a muscle tear that leaves the 27-year-old out of the Wembley clash," the club said in a statement on Tuesday.

United won the League Cup in February and will face City in the FA Cup final on Saturday as they attempt to prevent their near neighbours winning a trophy treble. 

City have already won this season's Premier League, collecting the title for the fourth time in five seasons, and will face Inter Milan in the European Champions League final on June 10 (June 11 AEST).