Los Angeles Chargers head coach Jim Harbaugh left Sunday's game against the Denver Broncos due to atrial flutter, a type of arrhythmia that causes the heart's atria to beat rapidly. Harbaugh, who has managed this condition in the past, was escorted to the locker room for medical evaluation but returned to the sidelines midway through the first quarter. Defensive coordinator Jesse Minter temporarily took over coaching duties during Harbaugh's absence. Harbaugh later confirmed he felt good after his heart returned to a normal rhythm and mentioned plans for a cardiological reevaluation. The game also saw injuries to Chargers receivers Ladd McConkey and Quentin Johnston, and Broncos cornerback Pat Surtain II, who suffered a concussion. Despite the health scare, the Chargers secured a 23-16 victory over the Broncos.