The reason the Lions got rid of two players at the same time yesterday is because two new players were added to the roster. One was draft pick Willie Young, who signed a three-year deal with the team. The other was defensive tackle Leger Douzable, who was claimed off waivers from the Rams.
Douzable entered the NFL as an undrafted free agent in 2008, originally on the roster of the Minnesota Vikings. He went on to play for the New York Giants for two seasons, though he never got into a game.
In 2009, as a member of the St. Louis Rams, Douzable played in 12 games and made one start. He had 11 tackles for the Rams, showing that he was more of a depth player who hasn't exactly gotten a ton of playing time over the years.
With the Lions, Douzable will compete to be a backup defensive tackle. The Lions have quite a few DTs that already fit the depth role, but Douzable is another one that can compete for a roster spot during training camp.