“I think then, that on this day set to help raise awareness of the condition, I should confirm that I too have Motor Neurone Disease. I should like to take this opportunity to thank the National Health Service in recognising then diagnosing this, as yet, incurable disease.
“I am currently on holiday in New Zealand with Kathy and the boys and when we return, I will devote my time towards assisting research and raising awareness and funds to help support fellow sufferers.
“There are plans in place to create a charitable foundation to help in any way we can and we will share these details with you after our family trip.”
Scottish Rugby said in a statement: “Doddie gave distinguished service to the national team for 10 years and has been a terrific ambassador for the sport.
“He is a larger-than-life character and Scottish Rugby will look to support him and the charity initiative he has described.”