You must have missed the thread on the main board where people were discussing abductor and adductor muscles, and whether or not these were connected to the groin. [Reminds me of that childhood jingle, My toe bone is connected to my....)
Beyond the 100 posts there that were over-reactions, suffice it to say that Hasek had a sore muscle but NOT the groin somewhere in his thigh. Latest projections said he'd be back by the weekend. I'm sure the Wings won't rush him back.