Manchester United youngsters Kobbie Mainoo and Rhys Bennett trained with the first-team on Thursday afternoon.
Mainoo, 17, and Bennett, 19, who won the FA Youth Cup with the Under-18s last season, were both absent from the Under-21s' match against Bolton in the Papa John's Trophy on Tuesday, as they trained with Erik ten Hag's first-team this week.
The Manchester Evening News understands United drew 1-1 with Everton in a behind-closed-doors friendly at Carrington on Wednesday and it's possible that Mainoo and Bennett played in that match.