Nine-time Grand Slam champion Monica Seles opens up about living with rare autoimmune disease

Tennis legend Monica Seles, a nine-time Grand Slam champion, reveals her three-year battle with myasthenia gravis (MG), a rare neuromuscular disease. At 51, Seles is speaking out to raise awareness, partnering with Argenx for the ‘Go for Greater’ campaign timed with the U.S. Open.