Ivory was acquired from the New Orleans Saints for a fourth-round pick on Friday and agreed to a three-year $10 million deal.
The Buffalo Bills have traded linebacker Kelvin Sheppard to the Indianapolis Colts for linebacker Jerry Hughes.
Sheppard had 80 tackles (56 solo) and 2.0 sacks last year.
Hughes started six of the 16 games he played last year for the Colts. He had 41 tackles (29 solo), including a career-high 4.0 sacks.
The Jacksonville Jaguars have waived first-year defensive end Jerome Long and first-year wide receiver Jerrell Jackson.
After the moves, the Jaguars have 59 players under contract.
They drafted eight players over the weekend and agreed to terms with 23 rookie free agents.
The Green Bay Packers have released guard Joe Gibbs. Gibbs, a first-year player out of Tennessee-Martin, was on Green Bay's practice squad for the final six regular-season contests and both playoff games last season.
Arizona Cardinals general manager Steve Keim has told Sports Illustrated's Peter King that former Heisman Trophy finalist Tyrann Mathieu is not the type of player the team ordinarily drafts. But they were willing to take the risk by grabbing the former LSU defensive back in the third round of the NFL draft on Friday.
After a stellar 2011 season, Mathieu failed several drug tests and was kicked off the team during a troubled 2012 season.