The playing status of starting left tackle Cordy Glenn is less certain.
The Bills added bulk to their offense by re-signing fullback Jerome Felton about 10 days after the ninth-year player was among the team's final cuts.
Glenn Gronkowski was an undrafted rookie free agent, who played just eight snaps against Baltimore.
Buffalo initially signed Felton to a four-year contract in March 2015. The Bills, however, used mostly a one-man backfield which led to Felton being used sparingly last season.
Glenn was not spotted in the locker room following practice. The fifth-year player is Buffalo's top-paid offensive lineman after he was re-signed to a five-year, $65 million contract in May.

Watkins said he felt "rusty" and acknowledged he needs to play better.
"I don't know if I'm around 100 or 95 percent or whatever," said Watkins, who had two screws inserted into his foot in April to repair a stress fracture. "I feel great. I can go out there and compete at the highest level."
"We've got to come up with something," said Ryan, noting Jets have a strong defense. "We have to be a lot better or it can get ugly against this group."
Watkins was limited to four catches for a team-leading 43 yards against Baltimore,Authentic Buffalo Bills Jersey.
Watkins spoke after attending a walk-through practice session that was closed to reporters. Though it's unclear whether Watkins participated, he walked off the field showing no signs of a limp.
"I'm definitely going to be out there playing,Jerseys From China," Watkins said Monday, putting to rest concerns he experienced a setback during a 13-7 season-opening loss at Baltimore.
As for Watkins,Cheap NFL Jerseys China, Ryan said the receiver complained to trainers that his foot felt sore after the game.
The injury is the latest setback for Watkins, who hasn't been healthy entering a season since Buffalo traded a first-round draft pick to Cleveland to move up five spots to select him with the fourth pick of the 2014 draft.
It was a listless performance for a Tyrod Taylor-led attack that returned mostly intact after leading the NFL in rushing last season.
"I got it checked out, and I'm fine," he said,China Jerseys Cheap, referring to tests conducted on his foot following the game Sunday.
Without revealing the severity of Glenn's injury, coach Rex Ryan said the player hurt the same left ankle that forced him to miss three weeks of training camp.
The injury concerns come at a time when Buffalo's offense managed 160 yards against Baltimore — Buffalo's fewest in a decade.
Ryan acknowledged being disappointed with his offense, while noting the Bills have little time to regroup while playing twice in five days.
"I just felt like it was tired, and I just wanted to make sure," Watkins said. "So it's no particular reason why I did it. I just felt I needed to do it. And if I need to do it again, I'm probably going to do it every week."
He was hampered by a rib injury during his rookie season. Last season, he was slowed by ankle and calf injuries.
He spent a few minutes on the sideline flexing his foot while talking to the team's head athletic trainer, Shone Gipson, before making his way to the locker room.
Instead, the Bills took a significant step back in combining for just 11 first downs — the team's fewest since it managed 10 in a 45-3 loss at San Francisco on Oct. 7, 2012 — and 65 yards rushing.
"We'll see how he progresses," Ryan said. "I'm hoping he plays,Paul Kariya Ducks Throwback Jersey, and we'll see."
When healthy, Watkins can be a dynamic threat. He closed last season combining for 35 catches for 679 yards and six touchdowns in Buffalo's final six games.
ORCHARD PARK, N.Y. (AP) — Bills receiver Sammy Watkins said his surgically repaired left foot feels fine, and he's ready to play against the New York Jets on Thursday night.
To make room, Buffalo released fullback Glenn Gronkowski, the younger brother of New England star tight end Rob Gronkowski.
The Bills were cautious easing Watkins back into practice last month.
Taylor was limited to throwing short passes and attempted just one throw beyond 20 yards. It was a 40-yard completion to tight end Charles Clay and only after Taylor scrambled out of trouble.