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

Julian Quinones was beyond the last Ecuador defender. Despite that, the Mexican winger wasn't called offside. Half a field later, Quinones had tucked away the match's first goal for a 1-0 Mexico lead at home in Mexico City.

The biggest single culprit in Iran’s failure to advance to the knockout phase is a weird idiosyncracy to the offside law that has long outlived its usefulness.

A viral claim alleged that the 2026 FIFA World Cup VAR team for Belgium vs. Iran was Israeli after a VAR review disallowed a goal.

Cristiano Ronaldo has an equalising goal ruled out for offside during Portugal's round of 32 game with Croatia in Toronto.

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 over Bosnia and Herzegovina on Wednesday night.

Wayne Rooney could not believe the decision made by VAR in the Colombia and Portugal clash at the World Cup. Colombia and Portugal played out a 0-0 draw in their Group K; the South American nation scored in stoppage time, believing they had won the game, only for it to be ruled out for offside.