What is field hockey?

Answer 1

Field Hockey is a sport in which two opposing teams, of 11 players each, attempt to score goals. They do this by manoeuvring a small hard ball with sticks, and getting into the opponent's goal. More information can be found at the related links.

Answer 2

when ball is hit on your leg (foot) while dribbling or tackling opponent, it is considered as a foul (Foot foul).

opponent can intentionally hit the ball at your leg to get free hit. so you have to be careful while tackling opponent.