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Monica Seles Reveals Battle with Myasthenia Gravis

2026-06-23 · Monica Seles · Player Focus

Monica Seles, the 51-year-old tennis legend, has revealed she's battling myasthenia gravis, a neuromuscular autoimmune disease.

Myasthenia gravis causes muscle weakness in the arms and legs and bouts of double vision among other symptoms.

Seles was diagnosed with the condition three years ago, after noticing odd changes around five years ago.

She would miss a ball while playing tennis with kids or family members, and see two balls instead of one.

The disease affects her day-to-day life quite a lot, and there is currently no cure for it.

Seles had to adjust to a "new normal" and is looking to move forward with the next version of herself.

Seles won eight Grand Slam titles prior to the stabbing incident in 1993, and reached the finals of all four majors in 1992, winning three of them.

She won the Australian Open for the third straight time months before the stabbing.

After her return, Seles won just one Grand Slam title, the 1996 Australian Open.

Seles decided to reveal her condition and use her platform to help educate people about the little-known disease.

She partnered with argenx, a company that aims to raise awareness at the upcoming U.S. Open.

Seles retired from professional tennis in 2008 and was inducted into the International Tennis Hall of Fame one year later.

She won 53 tournaments and spent 178 weeks at No. 1, sixth-most all-time among female players.

Seles' journey with myasthenia gravis has not been easy, but she's determined to raise awareness and support for patients.

As she said, "You've got to always adjust. That ball is bouncing, and you've just got to adjust."

Seles' story is an inspiration to many, and her efforts to raise awareness about myasthenia gravis will undoubtedly make a difference.

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