ORCHARD PARK, N.Y. -- After injuring his ankle late in Wednesday’s practice, Buffalo Bills wide receiver Robert Woods did not practice Thursday and might not play in Sunday’s game against the San Diego Chargers.

"Right now he wouldn’t be able to play," coach Doug Marrone said.

Woods has started the first two games of the season alongside rookie Sammy Watkins. He has five catches for 83 yards.

Watkins was more optimistic about Woods' status Thursday.

"I think he's fine. I think they just wanted to rest him today. He tweaked his ankle the other day," Watkins said. "He went through the walk-through [Thursday morning] pretty fine. But I think it was kind of sore a little bit, but he gonna be fine."

Meanwhile, the Bills added starting left guard Chris Williams to their injury report. He was limited.

"He went throughout the practice," Marrone said. "We just watched his reps."

Here is the Bills' full Thursday injury report:

Did not participate:

S Jonathan Meeks (neck/placed on injured reserve)

LB Randell Johnson (knee)

WR Woods (ankle)

Limited participation:

LB Keith Rivers (groin)

DT Stefan Charles (hip)

G Williams (back)

Full participation:

WR Watkins (ribs)

TE Lee Smith (toe)