Monica Seles diagnosed with chronic neuromuscular disease - ESPN

International Tennis Hall of Famer Monica Seles says she was diagnosed three years ago with myasthenia gravis — a neuromuscular autoimmune disease that causes weakness in voluntary muscles.

Seles, speaking publicly about it for the first time, told The Associated Press that she first noticed the symptoms while she was swinging a racket the way she'd done so many times during and after a career that included nine Grand Slam titles.

«I would be playing with some kids or family members, and I would miss a ball. I was like, 'Yeah, I see two balls.' These are obviously symptoms that you can't ignore,» Seles said. «And, for me, this is when this journey started. And it took me quite some time to really absorb it, speak openly about it, because it's a difficult one. It affects my day-to-day life quite a lot.»

The 51-year-old Seles, who won her first major trophy at age 16 at the 1990 French Open and played her last match in 2003, said she decided to speak publicly about her diagnosis to raise awareness about what is known as MG.

The National Institute of Neurological Disorders and Stroke calls it «a chronic neuromuscular disease that causes weakness in the voluntary muscles» and «most commonly impacts young adult women (under 40) and older men (over 60) but… can occur at any age, including childhood.»

Seles said she'd never heard of the condition until seeing a doctor and being referred to a neurologist after noticing symptoms such as double vision and weakness in her arms — «just blowing my hair out… became very difficult,» she said — and legs.

«When I got diagnosed, I was like, 'What?!'» Seles said. «So this is where — I can't emphasize enough — I wish I had somebody like me speak up about it.»

She has learned to live a «new