TOP envoy Sir Christopher Meyer had surgery yesterday after two teenagers savagely attacked him on a Tube platform.

A 16-year-old boy and a 15-year-old girl were arrested after Sir Christopher, 74, was knocked unconscious.

5 Top envoy Sir Christopher Meyer, 74, had surgery after a savage Tube attack

Britain’s ex-US ambassador also suffered torn ligaments in his hand and a swollen eye, chin and nose.

His family released a photo of him lying blood-soaked at St Mary’s Hospital in Paddington, West London.

Docs were yesterday preparing to operate on his hand and mouth.

The dad of four was set upon around 3pm on Wednesday at central London’s Victoria Station.

5 Wife Baroness Meyer, 65, said of the attack: 'It was senseless, a complete disgrace' Credit: Getty - Contributor

Wife Baroness Meyer, 65, said of the attack, which happened on a Victoria Line platform: “It was senseless, a complete disgrace.

“I’m angry a tiny number of people behave this way and we don’t take stronger measures. All he remembers is walking down a platform — he was on his way to a think tank meeting.

“They damaged him quite a lot. The police have taken his clothes for DNA and evidence.

5 Sir Christopher was US ambassador on 9/11 — serving from 1997 to 2003 Credit: Getty Images - Getty

“We have no idea what the motive was. If they just wanted to steal something from him, then why beat him up like that?”

Sir Christopher was US ambassador on 9/11 — serving from 1997 to 2003.

He was also PM John Major’s press secretary from 1994 to 1996.

5 Meyer was also PM John Major’s press secretary from 1994 to 1996 Credit: Getty Images - Getty

5 Credit: Louis Wood - The Sun

Meyer was treated for his injuries at St Mary’s Hospital in Paddington, West London

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Baroness Meyer said he was cracking jokes in the ambulance, adding: “They were laughing as he said his favourite suit was ruined.”

Police said a boy from Hillingdon, North London, and a girl from Croydon, South London, were arrested on suspicion of assault.

A spokesman added: “We haven’t got any information to suggest it is a robbery.”