RADIO presenter Sally Stone (pictured) defied doctors' orders not to run the London Marathon -- and raised £20,000 for charity.

And her doctor couldn't be happier -- because he is her father!

Sally was told by her dad, Blackburn Royal Infirmary physician Dr Ahmed Shahidah, that she was risking serious injury if she ran the marathon with an injured knee and back, both of which she sustained in training.

After she refused to believe her father, a second appointment was set up with one of Dr Shahidah's colleagues.

His second opinion was exactly the same -- but she still went ahead and did it!

Sally only started training for the marathon eight weeks before the event.

She said: "I ended up in casualty last week and I was told twice not to run. "There was no way I wasn't going to run the marathon. I had so much money pledged for it I knew I would have to do it."

Her dad's grim prediction nearly came true during the race, when she fell, and had to have her knee bandaged by paramedics on the course.

Sally added: "The doctors in the ambulance told me not to go on but everyone there was pushing me on, so I carried on and completed it.

"I was crying when I crossed the finishing line. I was so happy."

Despite her break in the ambulance, Sally completed the marathon in just over six hours.

Dr Shahidah, said: "I was very concerned about her running, but I should have guessed she wasn't going to listen to me!

"I was very worried when I heard she'd had to stop but fortunately she carried on. She must have been in real agony to complete the marathon and it just goes to show what lengths some people will go to for charity."