(FILE PHOTO): FIFA have announced German company GoalControl-4D ‘s ball-tracking system will be installed at the World Cup 2014 stadiums pending a successful trial during June’s Confederations Cup. YOKOHAMA, JAPAN – DECEMBER 05: Thomas Pellkofer of GoalRef demonstrates the system during the Goal-Line Technology demonstration at International Stadium Yokohama on December 5, 2012 in Yokohama, Japan. (Photo by Michael Regan – FIFA/FIFA via Getty Images)