ADVANCE FOR WEEKEND EDITIONS, DEC. 21-22 - FILE - This Dec. 12, 2010 file photo shows the collapsed roof of the Metrodome in Minneapolis. Though their time in the Teflon-covered building will be marked by plenty of controversy, embarrassment and the failure to reach the Super Bowl, the Minnesota Vikings turned the stadium into one of the toughest places in the NFL for opponents to play. (AP Photo/Ann Heisenfelt, File)