News: Ridley is visiting the Miami Dolphins, who are in the market for a backup to Lamar Miller.
Impact: Ridley is recovering from ACL knee surgery and was limited to six games last year with the Patriots. His best season was in 2012, when he ran for 1,263 yards and 12 touchdowns. The Patriots took him in the third round of the 2011 draft.
News: The Arizona Cardinals have signed quarterback Chandler Harnish to a one-year contract. Terms were not disclosed.
Impact: Harnish was a seventh-round draft pick out of Northern Illinois by Indianapolis in 2012,as he was Mr. Irrelevant that year. He split his rookie season between the active roster and practice squad with the Colts and was on the practice squad all of 2013.
News: The Carolina Panthers announced they've signed free agent linebacker and special teams contributor Jason Trusnik to a one-year contract. Financial terms and incentives were not released Tuesday.
Impact: The 6-foot-4, 252-pound Trusnik is an eight-year NFL veteran who spent the last four seasons with the Dolphins. He played in all 16 games in 2014 with five starts. He had 39 tackles, two passes defensed, one forced fumble and two fumble recoveries on defense.
News: The Oakland Raiders have released defensive tackle Antonio Smith after just one season with the team. The Raiders announced the move to cut Smith on Tuesday, one year after signing him to a two-year contract.
Impact: Smith started 16 games for Oakland last season. He had three sacks and was an effective pass rusher from the inside but struggled against the run.
News: Austin is joining the Philadelphia Eagles on a 1-year contract.
Impact: The undrafted receiver spent eight seasons with the Cowboys before playing for the Browns last season, putting up 568 yards and scoring two touchdowns in Cleveland's struggling offense. Austin, 30, had a breakout season in 2009, when he scored 11 touchdowns and had 1,320 yards.
News: The San Francisco 49ers have re-signed linebacker Desmond Bishop to a one-year contract.
Impact: Bishop joined the Niners last December and played two games. He had two tackles on special teams and one on defense. San Francisco had been seeking help at linebacker after the recent retirements of Patrick Willis and Chris Borland. Bishop has appeared in 75 games with Green Bay, Minnesota and San Francisco since entering the league as a sixth-round pick by the Packers in 2007 out of California.
News: The Colts have signed free agent receiver Vincent Brown. Terms of the deal were not available.
Impact: San Diego took Brown in the third round of the 2011 draft. He played in 37 games with the Chargers and Oakland Raiders, making 16 starts and catching 72 passes for 919 yards with three TDs. Brown missed all of 2012 with an ankle injury.