Fan Jordan Mims

The third quarterback must be part of a team's 53-man roster. He can't be promoted from the practice squad via a standard elevation for that role. The third quarterback can enter the game only if the top two are injured, and he must be removed if either of them are cleared to play by medical officials. The referee is charged with keeping track of whether the third quarterback is eligible to play.

First-round pick Lukas Van Ness did not start out as a Herculean pass-rusher, and second-round pick Luke Musgrave wasn’t always a smooth-striding tight end.