The New Orleans Saints on Tuesday signed free agent linebackers Chris Graham and William Kershaw, and defensive back Tuff Harris.
Graham, a 5-11, 225-pound rookie, was a four-year letterman and a two-year starter for the Michigan Wolverines.
Kershaw (6-3, 240) has been with four NFL clubs since first being signed as an undrafted free agent by the Kansas City Chiefs in 2006. He was waived by the Chiefs early in the 2007 season, went to the Philadelphia Eagles' practice squad twice, sandwiched around a three-week span with the Houston Texans. He spent a portion of the 2008 offseason with the Denver Broncos before being waived in April.
Harris (6-0, 198) spent the 2007 season with the Miami Dolphins, splitting time between the practice squad and active roster. He was waived by the Dolphins in April.
The Saints also announced it had waived linebacker Luke Sanders and safety Rocky Schwartz, each of whom signed as undrafted free agents following last month's draft.
