By Jeff Ghiringhelli Sunday's marquis matchup between Michigan State and Purdue was already full of storylines. Robbie Hummel added another on Wednesday night when he went down with a torn ACL at Minnesota. Hummel's knee buckled awkwardly on a drive to the basket, and an MRI taken yesterday confirmed that he will be out for the rest of the season. This is obviously … [Read more...] about Michigan State’s Season On The Line Sunday