Coach Doug Marrone said Robey "rolled his ankle" in practice last week, during the Bills' bye week, but he is expected to play Sunday in Toronto.
The undrafted rookie from USC has been a bright spot for Buffalo this season, holding his own at slot cornerback from the start of the regular season.
Here is the Bills' full injury report from Wednesday, their third practice of the week but the first day they were required to release a practice participation report:
WR Stevie Johnson (groin)
WR Robert Woods (ankle)
CB Nickell Robey (ankle)