At an event celebrating the city's native son, Cardinal Blase Cupich spoke on immigration and the undocumented in his "Sermon on the Mound."

One has danced atop the dugout at Rate Field. Another earned a Topps trading card for throwing a perfect strike. And a third has run the Chicago Marathon 13 consecutive times. Sports is a habit, but their life’s work is a higher calling. They’re nuns.