Tennis legend Monica Seles reveals myasthenia gravis diagnosis as her latest ‘hard reset’

Monica Seles first noticed the symptoms of myasthenia gravis while she was swinging a racquet the way she had done so many times.

The 51-year-old Seles, who won the first of her nine major trophies as a 16-year-old at the 1990 French Open and played her last match in 2003, said she was diagnosed…