Man Utd ratings: Amad Diallo’s rare start gives Red Devils a spark but Casemiro’s dodgy defending does the damage

AMAD DIALLO showed Erik ten Hag why he has been begging to be picked as Manchester United failed to produce the goods against Arsenal.

The youngster has found game time difficult to come by this season since suffering a bad injury in pre-season.

APAmad Diallo impressed before being taken off with an injury[/caption] GettyCasemiro’s lacklustre defending let down Manchester United once again[/caption] Leandro Trossard scored the only goal of the gameGetty

But he looked...