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

Tennis Hall of Famer Monica Seles is discussing for the first time her diagnosis of myasthenia gravis — a neurological autoimmune disease she was diagnosed with in 2022.

Monica Seles says she had never heard of myasthenia gravis when she was diagnosed three years ago, and hopes she can help others avoid the same confusion.