accidental

In my badminton class, we warmed up our body before we start to play.
The badminton teacher teaches us some interesting action and every student got fun from it. But it takes thirty minutes; I think it is too long to warm up. Then, the teacher starts to teach us the action of basic. After we practice again and again and were corrected by the teacher, she let us play badminton with our partner.
When I play badminton with my partner, a terrible thing happened. A ball was thrown toward my left eye and I didn’t pay attention on it. It is so painful that my tears fall down. I feel a little painful on my left eye and I think I should go to see the eye doctor, maybe tomorrow.