NFL equals surprises.
Well, at least this year it does; never in recent memory have teams had such turnarounds, both positively and negatively.
The Detroit Lions were winless in 2008, now a distant memory as they just boosted their record up to 4-0. The Eagles, dubbed the "Dream Team" this summer, with a group of players that should easily be competing for the Super Bowl, is 1-3.
Yet, it's not only teams that have made fans throw away everything they thought they knew about the NFL, it's players as well.
Chris Johnson had a perennial MVP season just two years ago, rushing for over 2,000 yards, and was still top-three material just last year. Yet, this year, he's rushed for over 100 yards just once, and has faded away down the stretch multiple times.
Ryan Fitzpatrick, who was an NFL laughing stock for the Bills during their humiliating season, has turned the team around, and is now at the point where it's considerable to call him an elite quarterback.
Needless to say, surprises are anything but a rare occurrence in the National Football League, yet some are obviously more intriguing than others.
So, without further ado, the 15 biggest surprises of the season thus far...