Los Angeles Chargers linebacker Khalil Mack left the Monday night matchup against the Las Vegas Raiders after injuring his left elbow late in the first quarter. He did not return, prompting defensive adjustments for the rest of the contest.

Chargers linebacker Khalil Mack left Monday night’s matchup in Las Vegas after his left arm bent back during a tackle. The harsh elbow injury forced the star defender out in the first quarter, leaving Los Angeles to finish the game without one of its key players.