The Oakland Raiders signed former Eagles safety Nate Allen to a four-year contract Thursday to fill the hole created when Tyvon Branch was released.

"I just fell in love with everything and the direction that the organization is going and the coaching staff they brought in and the group of guys that we have here," Allen said. "It's a great thing and like I've been saying, we're planning on winning now. We're not trying to rebuild and try to do this or do that, we're trying to make something happen now, this year."

Allen had 10 interceptions, 28 passes defensed, four sacks, and three forced fumbles with the Eagles.

Colts

Indianapolis waived running back Trent Richardson after two disappointing seasons following a trade that brought the former top-five draft pick from Cleveland.

Richardson rushed for 977 yards and six touchdowns in two seasons with Indianapolis.

Concussions

The NFL and opposing lawyers have filed a 208-page defense of their final plan to settle thousands of concussion lawsuits.

The filing comes as Senior U.S. District Judge Anita Brody in Philadelphia appears poised to approve the deal after several revisions.

The settlement is expected to cost the NFL more than $1 billion over 65 years. Retired players with severe cognitive illnesses could get up to $5 million. The average payout for someone with dementia is expected to be about $190,000.

Other moves

Chicago agreed to three-year contract with three-time Pro Bowl safety Antrel Rolle and receiver Eddie Royal. . . .

Tampa Bay signed safety Chris Conte and tackle Henry Melton. Terms of the agreements were not disclosed. . . .

New Orleans signed free-agent cornerback Brandon Browner to a three-year contract and linebacker Ramon Humber to a two-year deal. Browner's contract is said to be worth $18 million. . . .

Cornerback Antonio Cromartie agreed to terms with the New York Jets on a four-year contract, worth $32 million in base salary. . . .

Kansas City released wide receiver Dwayne Bowe, who would have counted $14 million against the salary cap. . . .

Justin Forsett agreed to terms on a three-year contract with Baltimore. . . .

Houston signed safety Rahim Moore to a three-year deal worth about $12 million.