` It disciplines the players . Special spray to mark out distances at free kicks being used in World Cup . FIFA gave go - ahead after successful test in junior team . The spray quickly disappears after being used by FIFA . 9.15 Fair Play was developed by a former Brazilian football player .
Special spray to mark out distances at free kicks being used in World Cup . FIFA gave go - ahead after successful test in junior team . The spray quickly disappears after being used by FIFA . 9.15 Fair Play was developed by a former Brazilian football player .