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

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 ...

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

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

VAR reviews for offsides are becoming more frequent Florencia Tan Jun/Getty Images Get free access to the most comprehensive World Cup coverage in The Athletic app. Offside calls generating ...

Even though it's fairly straightforward, soccer's offside rule can be confusing for casual fans. And even controversial at times.The United States had two goals called back for offside in its 2-0 win ...

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 ...