Manchester United manager Erik ten Hag gave match-goers a glimpse into the future at Old Trafford last season, with Kobbie Mainoo one of several youngsters who made appearances in various competitions.
He picked midfielder Mainoo in his starting XI against Charlton Athletic in the Carabao Cup. Mainoo and several other youngsters were included in the matchday squad as United ran out 3-0 winners at home against the League One side.
Mainoo made further appearances later in the season, with an outing from the bench against Reading in United's FA Cup fourth round win in January. This was followed by a Premier League debut just a month later, with the then 17-year-old making an appearance from the bench against Leicester City.