Ross was injured when he was involved in a nasty collision with teammate Jason Pierre-Paul. After a Matt Ryan pass was deflected, Pierre-Paul collided with Ross when he dove for a possible interception. Both players briefly remained down on the field before returning to the sideline. Pierre-Paul didn't appear to suffer an injury on the play and later returned.
The Giants also announced that running back D.J. Ware suffered a concussion and wouldn't return. It wasn't clear when Ware was injured.
Giants safety Deon Grant returned to start the second half after he had been listed as questionable to play with a quadriceps injury late in the second quarter. Grant doesn't start but plays extensively when the Giants use alignments with three safeties, with one of the safeties playing as a quasi-linebacker.
The Associated Press contributed to this report.