Quarterback Chad Pennington will remain with the Miami Dolphins in 2010, becoming a backup.

Pennington has agreed to a one-year contract, and the deal is expected to be signed by Monday, a person familiar with the discussions said Saturday.

The Dolphins announced the signing of former Arizona linebacker Karlos Dansby , who agreed to a $43 million, five-year contract Friday, the first day of free agency.

Pennington is recovering from the third operation of his career on his throwing shoulder. Twice he has returned from injuries to win NFL Comeback Player of the Year, most recently in 2008, when he led the Dolphins to their first playoff berth in seven years.

After Pennington was sidelined in the third game of last season against San Diego, second-year pro Chad Henne took over the No. 1 job.

Around the league

Falcons » Atlanta has signed free-agent cornerback Dunta Robinson , the Houston Texans' career interceptions leader, to a six-year, $57 million contract. The Falcons confirmed the deal Saturday.

Rams » St. Louis signed QB A.J. Feeley , who was a backup for Carolina last season.

Patriots » Two-time Pro Bowl nose tackle Vince Wilfork has agreed to a long-term contract that will keep him with New England. ESPNBoston.com, citing an NFL source, said the contract was for five years and $40 million.

Packers » Green Bay re-signed Chad Clifton , who will return to the left tackle spot he has occupied for most of his 10 seasons in Green Bay.

Jets » New York traded safety Kerry Rhodes to Arizona for a fourth-round pick in this year's draft and a seventh-rounder in 2011.