A kickoff in American football starts play at the beginning of each half and after scores. One team kicks the ball from a set spot to the other team. This play matters because it sets field position.
The receiving team tries to return the ball as far as possible. The kicking team focuses on coverage and containment. Rules control placement and touchbacks.
Strategy affects kick height and direction. For example, a kicker sends the ball deep, and the returner runs it to the thirty-yard line.