I don't like Mikhail to be the love interest of Sasha, I want him for Lala and be just an overprotective brother to Sasha. I mean he is basically a grandchild to Sasha since she's 2000 years old
Yes he was sick. He was going to temporarily stop figure skating to get surgery. This was the original reason why he missed the Olympics. However, during his hiatus he got pregnant so the public mistook the fact he took a break was because he got pregnant.
It's a surgery for his hormone imbalance that caused him to quit skating in the first place. Though I wished they explained what kind of surgery is done for that.
I don't like Mikhail to be the love interest of Sasha, I want him for Lala and be just an overprotective brother to Sasha. I mean he is basically a grandchild to Sasha since she's 2000 years old