To be honest, I don't know of the hotels, if any, near the stadium. However, here is a suggestion, go on to Travelocity and ask for an advanced lodging selection for Montreal. I believe that you can indicate under the heading of lodging near certain attractions. Then, do a search, and the options should list the distance the hotels are from the stadium.

I also seem to recall that there may be a Holiday Inn nearby. Perhaps you can also go to the stadium website, and they will mention the hotels in the vicinity of the staduim.