Ryan Jones

Former Wales captain scared

The 41-year-old said he had received the diagnosis in December last year, with doctors telling him he was one of the worst cases they had seen. He was also diagnosed with probable chronic traumatic encephalopathy.

Jones won 75 caps for Wales and captained the side to a Six Nations Grand Slam in 2008, making his last appearance for them in 2014. He was also part of the British and Irish Lions squad that toured New Zealand in 2005.