The governing body for high school athletics in Mississippi asked the state Supreme Court Friday to block a chancellor’s order banning outdoor activities because of the heat. The Mississippi High School Activities Association filed a request with the high court in response to Chancellor Mitchell Lundy’s order Thursday blocking activities between 9 a.m. and 7 p.m. until the record high temperatures ease. The order blocked, among other activities, outdoor football practice in a six-county area, including DeSoto County, as teams prepare for the start of the prep season the end of this month. In asking the court to issue either...