Ruben Amorim: Manchester United have to be careful with Kobbie Mainoo

Mainoo trained with his United team-mates on the eve of Thursday’s Europa League quarter-final first leg at Lyon.

Manchester United manager Ruben Amorim (Martin Rickett/PA)

Ruben Amorim says Manchester United have to be careful with Kobbie Mainoo’s fitness after the developing teenager returned to the squad for the first time in two months.

The homegrown 19-year-old has been absent since picking up a muscular issue in training in the days after his most recent appearance against Leicester in the FA Cup on February 7.