The Titans signed free agents TE Joey Haynos and WR Marcus Harris, the team announced Wednesday.
Haynos spent two seasons with the Dolphins and has 21 career receptions for 184 yards and three touchdowns. He played in all 16 games in 2009 with eight starts, but has not played in a game since.
The Lions waived Harris on July 25. He finished the 2011 season on the Lions' practice squad.