A Trump administration travel ban is now in effect for 12 countries, creating uncertainty regarding visa policies for foreign visitors planning trips to the U.S. for two of the biggest events in sports.

President Donald Trump’s latest travel limitations may keep fans from the 19 named nations from seeing their athletes compete in some of the globe’s most important sporting events in the next several years,

The order includes exemptions for athletes and staff attending "major sporting events," but for ordinary fans from the affected countries, hope remains slim.