MANCHESTER, ENGLAND - MAY 12: Referee Jon Moss signals during the Premier League match between Manchester United and Cardiff City at Old Trafford on May 12, 2019 in Manchester, United Kingdom. (Photo ...

Welcome to FTW Explains: a guide to catching up on and better understanding stuff going on in the world. Are you wondering what a free kick is in the NFL? We got you covered. At the end of the first ...