According to the data provided by Connected Ball Technology housed within the @adidasfootball Trionda, the official match ball of the @FIFAWorldCup, it was proven that contact was made by Croatia's #20 Igor Matanović in the build up to the goal against Portugal, allowing the referee to correctly determine offside and disallow the goal.   IMU sensors housed within the Trionda ball are capable of determining any slight contact, displayed to viewers in the broadcast as a 'heartbeat graphic', and allowing officials an unprecedented level of data to make fast, accurate decisions.