San Francisco 49ers head coach Kyle Shanahan experienced a serious automobile accident during the offseason that caused considerable harm, with his right eye being in particular jeopardy during the collision. According to former NFL quarterback Chris Simms, the crash resulted in injuries severe enough that Shanahan came dangerously close to permanently losing vision in that eye.

The exact circumstances surrounding the crash and full extent of Shanahan's recovery remain unclear from available reporting. However, Simms's revelation underscores the significant personal challenges the high-profile coach faced away from the football field during what should have been a period of rest and recovery.