MLS to use vanishing spray for several years . The vanishing spray used by referees at the recent FIFA World Cup has found a new home in the English Premier League . Biodegradable foam was a hit with fans and players at Swansea City 2014 . The spray has been used in English Premier League for 2014/15 season .
MLS to use vanishing spray for several years . Biodegradable foam was a hit with fans and players at Swansea City 2014 . The spray has been used in English Premier League for 2014/15 season .