Belichick called it a "really sad day" while speaking to reporters at a news conference at Gillette Stadium before the Patriots begin training camp.
The Patriots released Hernandez on June 26 just hours after his arrest.
Washington Redskins quarterback Robert Griffin III has said that he doesn't expect to play in any of the Redskins' upcoming preseason games.
Griffin is still mending from reconstructive surgery on his right knee more than six months ago. He was cleared by team doctors to return to training camp earlier this week.
The Tampa Bay Buccaneers have signed wide receiver Mike Williams to a six-year, $40.25 million contract, the team announced.
Cornerback Darrelle Revis will be available to practice Thursday when the Tampa Bay Buccaneers open training camp but will slowly work his way on the field, coach Greg Schiano said Wednesday.
Schiano said Revis will be limited coming off knee surgery last fall after he tore his ACL while playing for the New York Jets. Revis has been running and doing conditioning work during his rehab.
Outside linebacker Bjoern Werner has agreed in principle to a contract with the Indianapolis Colts. Terms of the deal for the 24th overall pick out of Florida State weren't disclosed.
Tennessee Titans rookie Jonathan "Tig" Willard was hailed for his big play off the field - saving a family and its dog from a burning car.
Williard was travelling from South Carolina to Nashville for the start of training camp on Tuesday when he came upon the vehicle in trouble.
The car went up in flames and black smoke billowed from it after the family and the dog were safely outside.
Tennessee Titans running back Chris Johnson and Chicago Bears wide receiver Devin Hester tested their speed against the fastest being on the planet - a cheetah - for a segment on Nat Geo Wild.
The races have been taped, but the results were not revealed.
There was a barrier between the runners and the cheetah.
The Atlanta Falcons signed cornerback Desmond Trufant to a rookie contract in time for the start of training camp.
The New York Jets and wide receiver Braylon Edwards appear close to another marriage, according to a report in the New York Daily News, which said the Jets are prepared to sign Edwards, who has a history of knee problems, if he passes a physical.
If Edwards does rejoin the Jets, it would be his third stint with the team. Edwards was with the Jets in 2009 and 2010 and again last year when he was claimed off waivers in December after his release by the Seattle Seahawks.
Denver Broncos linebacker Von Miller has shed little light on the possibility of a four-game suspension for substance abuse, but he did say that he does not smoke marijuana.
Miller met with reporters but deflected questions while citing the NFL's confidentiality clause while his appeal is reviewed. He offered to provide more specific answers when the process is complete.
The Tennessee Titans have placed tight end Delanie Walker on the physically unable to perform list after recent arthroscopic knee surgery.
Titans wide receiver Kevin Walter is also on the PUP list after arthroscopic back surgery to fix a disk problem.