Gronkowski had multiple forearm surgeries and a back operation during the offseason. He practiced in full pads Sunday for the first time since the surgeries. Monday's practice session was similar to a walk-through in helmets and shells.
When asked if Gronkowski had a chance to play this Sunday's season opener against the Buffalo Bills, Belichick said he is "day to day."
---The New England Patriots re-signed cornerback Marquice Cole on Monday, a day after releasing him.
To make room for Cole on the 53-man roster, New England cut offensive lineman Josh Kline.
Cole will serve a backup role in the secondary and contribute on special teams. Last year, Cole had 17 tackles, an interception and three pass breakups in 14 games played for New England. He also spent three seasons with the New York Jets.
--- Quarterback Terrelle Pryor took the first-team snaps at the Oakland Raiders practice, according to the Oakland Tribune.
Although head coach Dennis Allen has yet to publicly announce who the Raiders' starting quarterback will be for Sunday's season opener against Indianapolis, this is another indication that it will be Pryor.
Matt Flynn, who is competing with Pryor for the starting job, missed practice last week with a sore arm, but was available Monday.
---Rookie quarterbacks EJ Manuel and Jeff Tuel split the practice reps with the first team as the Buffalo Bills began preparing for Sunday's season opener against the New England Patriots.
Manuel is expected to start if he's medically cleared following minor knee surgery last month.
"There's nothing that seems to slow (Manuel) down," said Bills head coach Doug Marrone. "These two guys are pretty darn good."
---For the first time since suffering a lung contusion on Aug. 15, Cleveland Browns rookie linebacker Barkevious Mingo practiced on Monday.
Although he was limited in practice, the Cleveland Plain Dealer that Mingo sprinted around cones and participated in pass-coverage drills. His status for the Browns' opener against the visiting Miami Dolphins on Sunday remains unclear.
Mingo suffered the contusion against the Detroit Lions. He experienced shortness of breath and spit up blood, and spent two nights in the hospital.
---Fourth-round pick Chris Harper was signed to the San Francisco 49ers 53-man roster from the practice squad of the division rival Seattle Seahawks.
Harper, a wide receiver from Kansas State, was released by Seattle but re-signed to the Seahawks' eight-man practice squad on Sunday.
San Francisco, with five wide receivers on their roster with minimal game experience, took a chance that Harper will be able to contribute along with rookie Quinton Patton behind Anquan Boldin and Kyle Williams.
---Outside linebacker Cam Johnson was traded to the Indianapolis Colts from the San Francisco 49ers Monday.
Johnson, a seventh-round pick from Virginia who spent 14 games on the 49ers' practice squad last season before cracking the active roster, gives Indianapolis needed depth outside.
The Colts also announced they signed wide receiver Da'Rick Rogers to the practice squad and waived wide receiver Nathan Palmer from injured reserve with an injury settlement.
---The Dallas Cowboys traded tight end Dante Rosario to the Chicago Bears for a seventh-round draft pick in 2014.
Dallas signed Rosario in June.
Rosario was the third tight end with the San Diego Chargers last season and caught 10 passes for 95 yards with three touchdowns -- scoring all three in one game on Sept. 15.
---The Oakland Raiders signed free agent offensive tackle Tony Pashos.
Pashos has played 92 games (70 starts) over a nine-year career that includes stints with the Baltimore Ravens, Jacksonville Jaguars, San Francisco 49ers and Cleveland Browns. He also has three playoff starts.