KANSAS CITY, Mo. (AP) Sports fans in Kansas City are back in the national spotlight. Once again, it’s a glaring one. The latest flashpoint occurred Sunday, when Chiefs offensive lineman Eric Winston laid into a small percentage of Chiefs fans who cheered when struggling quarterback Matt Cassel suffered a concussion in the fourth quarter of a 9-6 loss to the Baltimore Ravens. Winston called the cheering fans “sickening,” and his locker-room diatribe went viral, picked up by everyone from ESPN to “Good Morning America.” It’s left the city with a black eye, and has served as the impetus for a discussion in what is considered uncouth behavior.