Looks like there's a deal in place for the Vikings to use TCF stadium during construction. http://www.myfoxtwincities.com/dpp/news/minnesota/vikings-tcf-bank-stadium-deal-feb-21-2012
Slightly off topic, but how how much is a MLS franchise fee? Looks like it's about 40 million dollars. Seems like pocketchange when stadium costs are around one billion dollars.
"Saputo first entered talks on joining MLS in 2008, but an initial bid to start in 2011 was turned down when he balked at the US$40 million expansion fee, proposing instead a package of about $43 million that included a fee and the cost of expanding their stadium."