Remember Dane Sanzenbacher? Somehow, an undrafted free agent whose breakout season in 2011 included 16 games with 27 receptions 276 yards, and 3 touchdowns (and a meager 50% catch rate) became an icon of sorts for some Chicago fans. His name produced debates, there was speculation about him developing chemistry with Jay Cutler, and then...
...well, in the next three years on two teams, Sanzenbacher would fail to meet the accomplishments of that single season. In fact, he would only add 16 receptions, 173 yards, and not a single additional touchdown for the remainder of his NFL career.