Mettenberger was drafted by the Tennessee Titans in the sixth round of the 2014 draft and spent three years in the league between the Titans, San Diego Chargers and Pittsburgh Steelers. He last appeared in a regular-season game in 2015.
He was released by the Steelers in May 2017, seemingly putting an end to his time in the league.
Mettenberger went 0-10 in his NFL career, all under center in Tennessee. He completed just 60.3 percent of his passes for 2,347 yards, 12 touchdowns and 14 interceptions in 14 career games.
There were things to like about the signal-caller coming out of LSU. He had good size (6'5", 224 pounds) and great arm strength. It appeared as though his talent would make him a mid-round pick at worst, but injuries and off-the-field issues caused him to slide all the way to the 178th overall pick.
As it turns out, he was not able to duplicate fellow sixth-round pick Tom Brady's rise to stardom.
Manziel is by far the most notable player in The Spring League—and Mettenberger isn't far behind. Whether this leads to another shot in the NFL for either quarterback remains to be seen. This is an opportunity, though, for Mettenberger, who is just 26 years old, to show teams that he can still sling the pigskin.