text: can someone tell me what the rules are for a legal throw in in the game of soccer? the first person to tell me the right answer will get chossen as best answer and get the points a legal throw-in: 1. feet must be on the ground when ball is thrown in. 2. you can jump. 3. you can drag your foot, but it can't come off of the ground. 4. ball has to be thrown from behind the head.