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 live.

Folarin Balogun thought he had doubled the United States’ lead against Paraguay, but the goal was ruled out after an offside call in the buildup. The incident came in the USMNT’s World Cup Group D opener at SoFi Stadium in Inglewood,

Offside is one of soccer’s most confusing rules, but the basic idea is simple once you know what referees are looking for.

Another way is for the officials to use VAR (Video Assistant Referee) to go back and look at the play to determine if it was offside or not. If it is "clear and obvious" that a ca

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 and is the bane of some fans' existence. Offside is often ...

Whether it's a narrow offside, debated handball, touch-and-go penalty, or contentious red card, VAR is going to make it's mark at the World Cup in Canada, Mexico and the United States – particularly given it will have extended powers.