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.

Khalil Mack is set to become a free agent for the first time in his 11-year career. Whether the Los Angeles Chargers linebacker decides to test the waters, though, is not the first thought on his mind.