The Tennessee Titans don't see any quarterback controversy between Marcus Mariota and Ryan Tannehill.

Mike Vrabel reiterated that Tannehill, acquired in a trade with the Miami Dolphins, will serve as the team's backup.

"His job as a backup -- everybody's job as a backup -- is to push the guy in front of him," Vrabel said. "To compete and try to make yourself better and try to make the team better and see how everybody responds."

Tannehill was the eighth overall pick back in 2012.