By Arforbes
Manager Erik ten Hag has been turning to young players due to numerous first-team absences, including the recent addition of Harry Maguire to the injury list.
Maguire's absence due to a muscle problem is expected to last approximately three weeks, further depleting United's defensive options.
With Maguire sidelined, Casemiro might continue in the center-back position alongside Jonny Evans, who is returning from injury and is in contention to play against Crystal Palace.
The squad was spotted at Manchester Airport, preparing to fly to London for the match against Crystal Palace.
Collyer's inclusion highlights Manchester United's reliance on young talents during injury crises, showcasing the club's commitment to nurturing its youth.
Another youngster included in Manchester United travelling squad for Crystal Palace fixture