Nine-time grand slam champion Monica Seles has revealed that she was diagnosed with myasthenia gravis — a neuromuscular autoimmune disease — in a recent interview with The Associated Press.

Nine-time Grand Slam champion Monica Seles reveals she was diagnosed with myasthenia gravis - a neuromuscular autoimmune disease - three years ago.

Nine-time Grand Slam champion Monica Seles is battling a new challenge: a neuromuscular autoimmune disease called myasthenia gravis. The 51-year-old Seles is going public about the condition she was diagnosed with three years ago.