FIFA referees supremo Pierluigi Collina has warned World Cup officials to only use technology as the last resort in Qatar later this year.
This year's World Cup, which begins in November, will be one of the most technologically advanced in history.
The use of VAR will be available in the tournament while a semi-automated offside system, capable of sending real-time offside alerts to the video match officials, FIFA World Cup will also be implemented.





Collina (pictured) is widely considered one of the best football referees of all time






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