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

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

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 ...

Offside calls are some of the most controversial ones in soccer. Here’s a detailed look at the rules ahead of the 2026 FIFA ...

One hundred years ago today, at a meeting at 22 Rue de Londres, Paris, association football — soccer — changed forever. The International Football Association Board voted that Law 11 of the game, the ...

FIFA wants football’s law-making body the International Football Association Board (IFAB) to press on with trials of what would be the biggest change to the offside rule in over 30 years. Championed ...

EDINBURGH, Scotland (AP) — Soccer’s rule-making body sought Saturday to clarify the sport’s offside definition in a bid to reduce widespread uncertainty for referees, players and fans. In a change to ...

The English Premier League is giving offside calls a (semi) automated upgrade. The new system revamps arguably the most controversial rule in sports. First introduced back in 1863, the offside law ...

FIFA has added a new layer of offside technology for the 2026 World Cup, with assistant referees set to receive real-time audio alerts when an attacker is clearly beyond the defensive line. Linesman ...