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.

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 ...

The Sporting News breaks down the offside rule, how it is enforced and why it's a part of the game.