​Workers will be putting in long hours in the next few days preparing the Independence Events Center for its opening weekend. The building holds 5,800 for hockey. Its principal tenant is the Missouri Mavericks, who are 2-5 in Central Hockey League play. The team practices in an adjacent rink that's open to the public when large, skilled Canadians are off the ice.In addition to hockey, the events center is vying for concerts too big for the Uptown but not quite worthy of the Sprint Center. The
