Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

A FIFA official displays new goal-line technology, developed by GoalRef, for the press in Yokohama on December 5, 2012 ahead the Club World Cup football tournament beginning on December 6. The wrist watch displays 'goal' and vibrates whenever the ball enters the goal. Referees can reject the use of goal-line technology or even overrule it in the Club World Cup, which starts this week in Japan, a senior FIFA official said on December 5. AFP PHOTO / Yoshikazu TSUNO (Photo credit should read YOSHIKAZU TSUNO/AFP/Getty Images)
A FIFA official displays new goal-line technology, developed by GoalRef, for the press in Yokohama on December 5, 2012 ahead the Club World Cup football tournament beginning on December 6. The wrist watch displays 'goal' and vibrates whenever the ball enters the goal. Referees can reject the use of goal-line technology or even overrule it in the Club World Cup, which starts this week in Japan, a senior FIFA official said on December 5. AFP PHOTO / Yoshikazu TSUNO (Photo credit should read YOSHIKAZU TSUNO/AFP/Getty Images)

    JUST WATCHED

    Goal line technology gets rave reviews

MUST WATCH

Goal line technology gets rave reviews

CNN's Alex Zolbert looks at new goal line technologies that are being tested on Japanese soccer fields.

Goal line technology gets rave reviews

CNN's Alex Zolbert looks at new goal line technologies that are being tested on Japanese soccer fields.