It is the second time the 6-4, 320-pound Grier has been on Green Bay's roster. He previously had been signed as a free agent on February 11, 2000, and subsequently placed on waivers April 17, 2000.
Coming out of Mississippi State, he was signed by Buffalo as an undrafted free agent on April 24, 1998. He later was waived August 31, 1998, in the team's final roster reduction for the regular season. Signed to New England's practice squad October 15, 1998, he was waived August 31, 1999, and out of football for the balance of the '99 season.
As a collegian, Grier, 26, started 26 of a possible 36 games and recorded 136 tackles, 14 of them for losses.
Grier takes the place of Carl Bradley who suffered a knee injury during practice earlier this week. Bradley, a free agent, had been impressive early in camp, but is expected to be out at least four weeks.
Others who have not been able to practice for the Packers include tackles Santana Dotson and Steve Warren. Both are rehabbing from major surgeries last December. Nose tackle Gilbert Brown also has been slowed by a sore knee and has missed practice time.