US President Barack Obama hands the trophy to Bears defensive co-ordinator Buddy Ryan (C) as coach Mike Ditka (L) and quarterback Jim McMahon (2nd R) looks on during an event celebrating 1985 Super Bowl champion the Chicago Bears, October 7, 2011 on the South Lawn of the White House in Washington, DC. The team’s 1986 White House reception to celebrate its Super Bowl victory was cancelled due to the Space Shuttle Challenger crash. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)