What is the restart when a player on a throw-in tosses the ball into his own goal?

In the situation where a player attempts a throw-in but accidentally tosses the ball into their own goal, the correct restart is a corner kick for the opposing team. This is because the rules state that if the ball goes directly into the goal from a throw-in, it results in a corner kick awarded to the opposing team. The rationale behind this is that the throw-in is a way to restart play, and if an error occurs that benefits the opposing team, the game must be restarted in a manner that allows for fair play and gives the other team an opportunity to score.

The nature of a throw-in is that it is meant to restart the game from the sidelines after the ball has gone out of play. In this instance, instead of the throw-in being valid, the unintentional scoring by the player results in an infraction where the correct call is to reward the other team with a corner kick rather than other types of restarts, which would not be appropriate in this context.