ST. PAUL, MN - APRIL 07:  Evan Trupp #19 of the North Dakota Fighting Sioux tries to keep the puck as Jeff Rohrkemper #22 of the Michigan Wolverines defends during semifinals of the 2011 NCAA Men's Frozen Four on April 7, 2011 at the Xcel Energy Center in St. Paul, Minnesota. The Michigan Wolverines defeated the North Dakota Fighting Sioux 2-0.  (Photo by Elsa/Getty Images)