Tackle football is a team sport played on a rectangular field, where two teams compete to score points by advancing an oval ball into the opposing team's end zone. Each team consists of 11 players, and the game is divided into four quarters. Players can pass, run, or kick the ball, but the primary objective is to carry it across the goal line. In tackle football, players are allowed to physically stop opponents by tackling them, which involves bringing them to the ground. The game is governed by a set of rules that ensure fair play and safety, with penalties for illegal actions. Popular leagues include the NFL and NCAA.