One on One: Cubs Rookie Catcher Willson Contreras

Chicago Cubs' Willson Contreras hits an RBI single off St. Louis Cardinals starting pitcher Jaime Garcia during the third inning of a baseball game Monday, June 20, 2016, in Chicago. (AP Photo/Charles Rex Arbogast)

Chicago Cubs' Willson Contreras hits an RBI single off St. Louis Cardinals starting pitcher Jaime Garcia during the third inning of a baseball game Monday, June 20, 2016, in Chicago. (AP Photo/Charles Rex Arbogast)

Mark Carman sits down with Cubs rookie catcher Willson Contreras to discuss how he has built rapport with his pitchers including John Lackey, who initially intimidated Contreras.