Manchester United’s struggle to challenge for Champions League qualification has led to £220million being wiped off the club’s stock market valuation in a month.

United, who will be without the injured Wayne Rooney, Robin van Persie and Ashley Young for Sunday’s FA Cup third-round tie against Swansea City at Old Trafford, have seen their share price on the New York Stock Exchange drop by more than 12 per cent from £10.68 to £9.36 since Dec 6 – despite the S&P 500 Index on which the club is listed enjoying a two per cent per cent overall rise in that time.

With the total valuation of the club at £1.75 billion on Dec 6, it had dropped to £1.53 billion during morning trading in New York yesterday.