Manchester United striker Zlatan Ibrahimovic is expected to be out for the rest of the season.
He picked up a knee injury in last night's victory over Anderlecht in the Europa League.
United manager Jose Mourinho says they've injury problems at either end of the field.
"We are in trouble," Mourinho said. "We are in trouble.
"In this moment, Eric Bailly played six matches in a row, and we lost Marcos Rojo, we don't have Jones or Smalling, we are in trouble and now we lose Zlatan too.
"But in attack, we have options and (Wayne) Rooney is coming, and let's see if Mata can also return before the end of the season, let's see what happens."