The Los Angeles Chargers surprised fans Sunday when quarterback Justin Herbert got the start against the Kansas City Chiefs.

Herbert played well in the loss, but head coach Anthony Lynn said as long as Tyrod Taylor is healthy, he will be the starting quarterback. Healthy is a key word for Taylor as a new report  trickling out Wednesday reveals insight into why he missed Sunday’s game.

Earlier this week, reports indicated that Taylor missed the game due to complications from a pre-game pain-killing injection for his ribs. Now, according to ESPN’s Adam Schefter, it seems that the doctor administering the shot accidentally punctured Taylor’s lung.