Alejandro Garnacho was keen to praise Manchester United teammate Kobbie Mainoo after the young midfielder made his second first-team appearance for the Reds.
Mainoo came off the bench as Erik ten Hag's side secured a 3-1 victory over Reading in the FA Cup fourth round on Saturday night, with Casemiro (2) and Fred both on the scoresheet for the home side.
The 17-year-old - who made his United debut in the Carabao Cup triumph over Charlton Athletic earlier in the season - replaced Casemiro in the 73rd minute of the clash. Despite only being on the pitch for the latter stages of the tie, Mainoo was still able to show glimpses of his quality against the Royals.
