Boothe, who turns 32 in July, signed a two-year contract with the Raiders before last season. Boothe appeared in nine games in 2014 as a backup, playing 1.8% of the team's offensive snaps and 5.2% of the plays on special teams.
Boothe was drafted by the Raiders in the sixth round in 2006 and started 14 games as a rookie. He was waived after one season and picked up by the New York Giants. He played seven seasons for the Giants at center and both guard positions, starting all 16 games in the 2012 and 2013 seasons.
The Raiders drafted Miami (FL) guard Jon Feliciano in the fourth round on Saturday.
- Dan Gartland