according to the Giants beat writers blog, they are saying that isn't true and Eli will be a game time decision.
from VACCHIANO
The MRI results on Eli Manning are in and the news was about as good as the Giants could have hoped for. He suffered only a sprained right shoulder, according to a league source. No structural damage was detected.
Manning's status for the Giants' game against the Green Bay Packers is uncertain, but the hope is that if he does miss any time it will only be a week or two at most.
The length of his absence may all depend Manning's tolerance for pain and he how he progresses as the week goes along. He will likely be very limited in practice this week, and his status for the Packers game is not likely to be known until right before kickoff