Manchester United's Martinez sidelined up to 3 months after surgery

Manchester United centre-back Lisandro Martinez is facing up to three months on the sidelines after the Argentina international underwent surgery following a fractured metatarsal in April's Europa League quarter-final first leg against Sevilla.

Martinez returned to action this season but an aggravation of that foot injury means he faces a fresh operation.

"I can confirm Licha Martinez will have to undergo surgery," Ten Hag said.

United head into Tuesday's match desperately needing a win following a 4-3 defeat by Bayern Munich in their Champions League opener and Saturday's 1-0 loss to Crystal Palace.

That Old Trafford defeat came after back-to-back wins, with Ten Hag saying: "Of course we are disappointed about the result.

"Then you have to analyse the game, where were the problems, then you have to move forward, but also give solutions for the problems."

Marcus Rashford's performances are under particular scrutiny, with the England international having scored just once this season following 30 goals in all competitions last term.

"The facts are that he is not scoring in this moment, but also he had the opportunities," Ten Hag said of Rashford.

"I think, for instance, in the game against Brighton, there were five or six occasions when he was in a very good spot.

"If he works hard and if he invests every day, goes into every game with the right focus and if the team also around him supply him, help him and support him with movement then it will come."