Soccer guru Sir Bobby Robson is one of the most famous faces in the sporting world.

But not everyone has heard of the former England boss.

The Newcastle United manager was knighted by Prince Charles at Buckingham Palace last week. But he was brought back down to earth with a bump when he was asked who he was.

Sir Bobby, 69, was shaking the hands of guests when he came across TV satirist and critic Dr Jonathan Miller.

He said: "There we were in a room in the palace before the investiture ceremony and one of my wife's favourite people, the art critic and entertainer Dr Jonathan Miller, was also being knighted.

"I've seen him on TV, even being interviewed by Parkinson. I recognised him immediately and I went up to him and offered my hand and introduced myself.

"'Hello, I'm Bobby Robson,' I said. 'I'm delighted to meet you.'

"Hello', he said. 'Delighted to meet you. And what do you do?'

"I thought, 'That's fantastic'. It was like a breath of fresh air, to be honest - someone who didn't actually know me or what I did. It doesn't half bring you down to earth."

Sir Bobby also spoke about receiving his knighthood.

He said: "It was the most wonderful day anyone could ever have. I was flattered, very proud and very happy."