During the 2018 season, the Chicago Bears made waves in the NFL world by trading for Khalil Mack and signing the Hall of Fame-caliber pass rusher to a massive six-year, $141 million contract extension.

With the free-agency period now in full swing for the 2019 season, the Bears are looking to scrounge up some extra cap space in hopes of further improving their roster. As reported by ESPN's Field Yates, Mack agreed to have his contract restructured by turning $13 million of his base salary and roster bonus into a signing bonus. In turn, the Bears freed up $11 million in cap space with this move, giving them more financial room to work with this offseason.

Credit the four-time Pro Bowl selection for being a selfless player for the Windy City franchise in search of its first Lombardi Trophy since 1984. Knowing how crucial his involvement is to the team's development for a Super Bowl run, the Bears are certainly fortunate to have a true team player like Mack on their side.

Last season, Chicago won the NFC North pennant and made the playoffs for the first time in eight years, thanks in large part to Mack's utter dominance and leadership on defense. The Bears' defense finished tops in the NFL in 2018 in terms of total points allowed and third overall in yards surrendered, and they are in line for another big season in 2019.