The Indianapolis Colts have strengthened their defence by signing former Cleveland linebacker D'Qwell Jackson.
Denver Broncos have released veteran cornerback Champ Bailey, but he is still looking to play a 16th NFL season.
Pittsburgh have confirmed that veterans Troy Polamalu and Heath Miller have signed new three-year contracts.
The San Diego Chargers have released cornerbacks Derek Cox and Johnny Patrick and fullback Le'Ron McClain.
The Atlanta Falcons have announced they have signed defensive tackle Corey Peters to a one-year contract.
Denver Broncos' star quarterback Peyton Manning has been fully cleared to play next season, according to reports.
New Orleans Saints have placed the franchise tag on tight end Jimmy Graham after failing to agree a new long-term deal.
The Philadelphia Eagles have announced they have agreed terms with tackle Jason Peters on a five-year contract.
A rift between the 49ers and coach Jim Harbaugh is developing after the Browns revealed they held talks over a trade.
Miami Dolphins have sacked offensive line coach Jim Turner and trainer Kevin O'Neill for their part in the bullying saga.