What happens if the ball strikes the corner flag?

When the ball strikes the corner flag, it remains in play. This is because the corner flag is considered part of the field of play. According to the Laws of the Game, the ball is only out of play when it completely crosses the goal line or touchline, either on the ground or in the air. Striking the corner flag does not meet this criterion, so the ball is still in play. This helps maintain the flow of the game, allowing for continuous action unless another situation invalidates it, such as a player being fouled or the ball crossing a boundary line.