Manchester United manager Louis van Gaal conceded he was "worried" about his team's goal-scoring problems after a goalless draw with PSV Eindhoven left their Champions League campaign in the balance.
Victory on Wednesday would have taken United into the last 16, but with Jesse Lingard blazing their best chance over the bar in the second half, they must now win away to Group B leaders Wolfsburg in their final match to be certain of a place in the knockout phase.