United States President Donald Trump has publicly thrown his weight behind under-fire FIFA President Gianni Infantino, warning the world football governing body that removing him would be a huge mistake. Trump wrote: “FIFA would be making a terrible mistake if, for any reason, they even considered replacing President Gianni Infantino. He presided over the most successful World Cup, by four times, ever presented. The central cause of the current FIFA crisis stems from a controversial project to open the World Cup and Club World Cup to private financial investors. European governing body UEFA responded aggressively, threatening to boycott the World Cup entirely if the plan went forward.