A look back: Khalil Mack became a Chicago Bear five years ago

Breaking news: The Chicago Bears and Khalil Mack have agreed to terms on a six-year deal worth $141 million. Mack becomes the highest-paid defensive player in NFL history. Ring a bell? That was five years ago Sept.1. The Bears acquired Mack via trade with the Oakland Raiders for a 2019 first-round pick, 2020 first-round pick, 2020 third-round pick and 2019...