Son, meanwhile, fractured his arm in the 3-2 win over Aston Villa last month.
Despite the injuries, Mourinho remained positive about his team’s chances of progressing through the quarter-finals of the competition.
He admitted that the squad is lacking an outright goalscorer, but they’re still capable of providing a stunning performance on Tuesday night.
“We don’t have what I love to call, the box sharks; the players in our team who smell blood in the box and they just put the ball in the net,” said Mourinho.