Striker Chido Obi will miss Manchester United's game against Real Sociedad because he's ineligible to play in the UEFA Europa League.
The 17-year-old impressed after coming on as a substitute during United's FA Cup defeat to Fulham on Sunday.
It was just his third senior appearance after moving from Arsenal in October.
His performance against Fulham prompted questions to head coach Ruben Amorim about whether he is close to making his first start in place of under-fire forward Rasmus Højlund, who hasn't scored since December.