The original logo of the Chicago Fire, used from 1997 to 2019, was derived from the Cross of Saint Florian, a common symbol for fire departments in the United States. Nike, the Fire’s original equipment supplier, best soccer jerseys intended for the team to be named the Chicago Rhythm. Team officials ignored Nike’s work, and privately developed the Fire identity with the help of Adrenalin, Inc., a sports branding agency from Denver. But Fox Sports has a different idea: virtual fans.