FIFA to use spray for free kicks at under-20 World Cup Author:SI StaffPublish date:Jun 21, 2013Referees will use a spray to show where the wall must stand behind to prevent encroachment.AP© 2014 Reuters Limited. All rights reserved.Latest NewsNapoli vs. Barcelona Prediction, Player Prop Bets & Odds for Today, 3/12Porto vs. Arsenal Prediction, Player Prop Bets & Odds for Today, 3/12UEFA Champions League Predictions, Picks & Betting Odds for Today, 3/12EPL Soccer: Liverpool vs. Man City Predictions & Betting Guide Today, 3/10SI:AM | A Wet and Wild USWNT Win