Folarin Balogun thought he had doubled the United States’ lead against Paraguay, but the goal was ruled out after an offside ...

The flag is up! We explain what that means and why one of soccer's most important rules is also one of the toughest to see ...

Understanding soccer's offside rule hinges on timing — it's about a player's position when the ball is passed, not received.

The Women’s World Cup is back again, which means one of the most controversial calls in sports has also returned. The offside rule has caused some of the most frustrating moments ever in soccer ...