“Of all the lasting images from the 2014 World Cup, the officials who run FIFA, soccer’s governing body, should be forced to remember one, above all: Germany’s Christoph Kramer staggering around the field in the final, glassy-eyed and dazed, like a sleepwalker. It was a glaring symbol of FIFA’s misguided approach to concussions and how desperately it needs to amend its substitution rules, which now allow for only three replacements per game and dictate that once a player is out of the game, he stays out. Faced with those restrictions, coaches are hesitant to keep a player with a possible head injury from leaving the match.” NY Times