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

The law governing its modern application has 45 clauses and runs to more than 1,000 words. A former Premier League referee ...

The ball goes into the net, the crowd cheers, but then the assistant referee's flag goes up. The celebrations end. What happened? The play was offside. Offside is one of soccer's most important ...

Offside is one of those rules that constantly draws attention because of how inconsistently it gets reviewed. Plus, there are ...

As the World Cup approaches, one of soccer’s most elusive phrases will pop up again and again on televisions across the country. You’ve heard it, you may claim to understand it, but what exactly is ...