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.

Edge defender Khalil Mack's playing days could be coming to an end. Mack spoke to the media a day after the Chargers' loss to the Texans and said he is contemplating retirement. "Man, it's a lot of different thoughts in my head right now,