Then a team of eight police eight police officers rushed to the central London home and let the burglar away in handcuffs, as Mourinho and wife Matilde Faria watched on from a window.

A passer-by said: “Jose looked dumbfounded. I don’t think it had registered with the guy he was trying to burgle the house of the world’s most famous football coach.”

Eastern European Gabor Roman, 25, of no fixed address, was jailed for four weeks by Westminster magistrates on Tuesday after admitting attempted burglary.

A private security guard, hired by local residents, initially spotted Roman wandering from house to house in upmarket Belgravia trying doors to see if they were unlocked.

The guarded saw the man disappear into Mourinho’s basement and alerted police, before the maid blew his cover.

A source told The Sun: “The prowler was trying not to be obvious but he clearly did not fit in with such an upscale area. The guard saw him trying all the house doors, leaning against them with his shoulder.

“He followed him on the opposite side of the road, using the cars for cover.

“He usually has a dog with him, but this time he did not.

“The first open door the guy found was Jose’s basement gate. That’s not unusual because his staff are in and out all the time and the basement front door is often ajar.

“It was perfect timing when the Portuguese maid screamed, ‘What are you doing here?’ — because at that moment the security man blocked the getaway.

“The burglar was threatening to punch him but he stood his ground. With nowhere to go, the burglar just smoked a cigarette.

“The way he was walking and talking he seemed to be on something. He looked really moody and nervous.

“The look on Jose’s face when he peered out was priceless.”

The attempted break-in took place hours after Mourinho had been at Wimbledon to see Andy Murray beat Milos Raonic.

As the prowler struck Mourinho was watching home nation Portugal beat France in the final of Euro 2016.

But despite the scare, Mourinho later posted a picture of himself on Instagram wearing pyjamas and smiling whilst holding a Portugal scarf.