Trubisky's veteran presence continues a long Titans tradition of finding overlooked backup quarterbacks who deliver when called upon.
The Tennessee Titans have been around since 1999, when the Tennessee Oilers changed their name.
This franchise is known for its running backs, with Eddie George, Chris Johnson and Derrick Henry enshrined in Titans' history. Fans have been spoiled by reliable punter play since the franchise changed its name as well.
Warren Moon and Steve McNair are two of the franchise's best quarterbacks. The Titans have also had a slew of solid backup quarterbacks throughout franchise history.
Mitchell Trubisky was one of the lesser-talked-about free-agent additions for the Titans. It's understandable because he's been reduced to a backup quarterback at this point in his career. Trubisky is 31-26 in his career and provides valuable experience during his multiple years as a starter with the Chicago Bears, which could definitely benefit Cam Ward.
However, finding a good backup quarterback in this league is no easy task. Luckily, the Titans have had success in finding them.
It started with Neil O'Donnell in 1999. McNair played in 11 games for the Titans that season, and O'Donnell went 4-1 as the backup. He threw for 1,209 passing yards, eight touchdowns and three interceptions in those five games.
Without O'Donnell, the Titans wouldn't have gone 13-3.
Then, there was Billy Volek.
Volek had his best season with the Titans in 2004, where he had consecutive 400-passing-yard games late in the year.
Plenty of fans remember Kerry Collins. Collins was with the Titans during the early 2000s. Vince Young suffered an MCL sprain early in the year, and Collins stepped in as a game manager, helping lead the Titans to a 13-3 record and the No. 1 seed in the AFC.
Journeyman quarterback Matt Hasselbeck was even with the franchise for a couple of seasons. The Titans had a 9-7 record when he was the starter in 2011.
One of the best backups that Tennessee had was, no doubt, Ryan Tannehill. Tannehill stepped in towards the end of the Marcus Mariota era.
Mariota underperformed and was benched in favor of Tannehill, who threw for 2,742 passing yards, 22 touchdowns and six interceptions. Tennessee made the AFC Championship Game, and Tannehill reached the Pro Bowl.
Tannehill then signed a four-year, $118 million extension and became the starter for the next few seasons. He finished his time in the Music City with the fifth-most passing yards (14,447) in franchise history.
The expectation isn't that Trubisky will turn into the next Tannehill, obviously. Ward will have the starting job held down, and Trubisky isn't expected to steal it from him. Like with punters, this franchise has also known more than everyone else when it comes to backup quarterbacks.
Trubisky joins O'Donnell, Volek, Collins, Hasselbeck and Tannehill as the backup quarterbacks to play for this franchise.
The Titans have their backup quarterback on the roster for the next two years, and Trubisky adds to the franchise's solid lineage.