The beautiful game would be very ugly if offside didn't exist. At the World Cup you'll see it often.

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

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

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.

Learn World Cup football rules fast with simple explanations of offside, stoppage time, free kicks vs penalties, tiebreakers, ...

World Cup soccer is back again, which means one of the most controversial calls in sports is returning, as well. The offside rule has caused some of the most frustrating moments ever in soccer and is ...

Offside is one of soccer’s most debated rules, especially when a goal is called back. A player can be in an offside position without actually committing an offside offense. The call usually depends on ...