The crash happened before 6 a.m. Monday.
The Asics and Columbia stores will open just in time for Christmas.
Tributes are being paid to the pair, who attended the University of St. Thomas and the University of Wisconsin-Eau Claire, respectively.
The single-vehicle crash happened on Interstate 94.
The interstate could be closed for several hours.
A few still remain open, however.
Witnesses described seeing a flash and hearing an explosion.
The fire was reported around 11 p.m. Thursday.
Harv Graczyk was injured in a fall during a Nov. 26 practice.
He's coached hockey in Minnesota for four decades.