Serena Admitted Emergency?!

That day I read the quick news of Serena Williams admitted to ICU on an emergency basis from Yahoo, I get shock a little bit because I was wondering what's actually happened to her and isn't those sportsperson are healthy people?... All sorts of queries popped out in my head. So when I check the further details about her condition, I understand that there was blood clots in her leg. She is now on the way of recovery and I hope she will gets well soon too because the major matches without her will be something amiss! She also said that she hope to return to the court in this Summer. So we'll wait and see!