The Los Angeles Chargers' heartbreaking ending to the season was visible on the faces of all the players, including star edge rusher Khalil Mack.

Former Chicago Bears star pass rusher Khalil Mack, now with the Los Angeles Chargers, is contemplating his next move. For the first time in his NFL career, Mack enters the offseason as an unrestricted free agent, but according to ESPN , he's mulling retirement after a 12-year career.

Mack entered the league in 2014 when the Oakland Raiders made him the fifth overall pick in the NFL draft. He was the 2016 Defensive Player of the Year before being traded to the Chicago Bears the week before the 2018 season after he and the Raiders could not agree on a contract extension.