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

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

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, ...

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

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 ...

Premier League clubs have unanimously voted in favour of introducing semi-automated offside technology from next season. Why have they done this? What exactly IS semi-automated offside technology? We ...

This article may have Spanish-language video from our Telemundo sister station. Get the latest World Cup news in Spanish from Telemundo. NBC Universal, Inc. World Cup soccer is back again, which means ...