PITTSFORD, N.Y. -- The Buffalo Bills can't catch a break at tight end.
There isn't an immediate prognosis on Chandler's injury. He was the team's leading receiver last season, catching 53 passes for 655 yards.
Moeaki is expected to miss "significant" time with his injury, while Gragg is expected back by next week. The Bills signed 270-pound Dominique Jones on Saturday to add another player to the mix, and Jones received plenty of reps in Sunday's practice after Chandler left.
In fact, the Bills were down to just Jones and burly blocking tight end Lee Smith by the end of Sunday's practice, so fullback Evan Rodriguez took a few snaps at tight end in a 7-on-7 drill late in the session.
"I don't really get concerned too much about the injury aspect of it," coach Doug Marrone said. "In a way, I look at it as we're going to try to put some different people in there without having to go out and bring another person in."
Sunday's full pads practice spanned 2 hours and 52 minutes, the longest of training camp so far. Marrone said the loss of Chandler plus the afternoon heat caused the offense to slow down and take more time between reps.
The Bills also lost wide receiver Kevin Elliott to concussion-like symptoms during Sunday's practice.
Gragg, Moeaki, and undrafted safety Kenny Ladler (hamstring) watched practice from the sideline.