Plans for GSP vs. Diaz where and when

The proposed Georges St. Pierre vs. Nick Diaz welterweight title match is being planned for 3/16 in Montreal.  More on that is at http://www.mmafighting.com/2012/12/12/3760194/dana-white-georges-st-pierre-vs-nick-diaz-slated-for-march-but-deal
It is not a confirmed deal, but it is the date UFC is looking at for the fight.