BBC Sport - Fifa boss Sepp Blatter explains video challenges

Blatter explains video challenges

Fifa president Sepp Blatter explains how a a video challenge system for refereeing decisions could work - potentially as soon as next year's under-20 World Cup in New Zealand.

The new rules would allow managers and coaches to challenge an official's decision, but only during a stoppage in play.

Blatter, 78, has also stated his intention to stand for a fifth term as Fifa president next year.

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