Photo: Sir Alex Ferguson reacts to Man United’s FA Cup loss to Chelsea

Sir Alex Ferguson was in the stands to watch Manchester United’s 1-0 loss to Chelsea in the FA Cup quarter-finals on Monday night.

The Red Devils were left with an uphill struggle at Stamford Bridge after midfielder Ander Herrera was sent off for two bookable offences in the first half.

N’Golo Kante broke the deadlock early in the second half when he fired home a low strike into the bottom corner and past an outstretched David De Gea.

Thibaut Courtois denied Marcus Rashford with a brilliant save in the 59th minute as Manchester United battled for an equaliser, but the Blues booked their place in the last four.

Former Manchester United boss Ferguson was pictured in the stands at Stamford Bridge along with ex-Aston Villa manager Alex McLeish.

And Red Devils legend Ferguson did not look to be too impressed with what he was seeing in west London.

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Manchester United must now dust themselves down as they prepare for their Europa League clash against FC Rostov on Thursday night.