A picture taken on November 17, 2012. shows  Dynamo Moscow football  team goalkeeper Anton Shunin covers his face while lying on the pitch shortly after he was injured by a firecracker thrown by visiting fans of Zenit St Petersburg football  team during a match between Dynamo Moscow and Zenit St Petersburg at the Khimki Arena in the town of Khimki outside Moscow. Russia's football authorities  vowed today to fully investigate the latest outbreak of fan violence to hit the World Cup 2018 hosts after a top-flight goalkeeper was injured by a supporter's firecracker. AFP PHOTO        (Photo credit should read STR/AFP/Getty Images)