The past 2012 NFL season got off to a shaky start when the replacement referees (brought in while the NFL negotiated with the usual starters) made some highly controversial (read: wrong) calls. And in 2013, two brothers go head to head, coaching the two playoff winners: The Ravens and 49ers. And both have their eyes on that coveted Superbowl title—what are the odds of that? Check out some of these NFL big shots—and a few future Hall of Famers—before they were stars…

The great thing about the NFL is that it changes every week. The frustrating thing about the NFL? It changes every week. One injury can ruin a player’s career; the same injury creates an opportunity for someone else to step up. This year things seem crazier than usual, perhaps because of the shortened pre-season caused by a labor dispute. Now that the NFL season is almost over, let’s play a little “who am I?” with some of the biggest names in the game before the biggest game of the year—Super Bowl XLVI on February 5, 2012!