Article Photos: 'Dry run' gives Harbaughs idea of what to expect 1/5

Jack and Jackie Harbaugh, parents of Baltimore Ravens head coach John Harbaugh and San Francisco 49ers head coach Jim Harbaugh, yell out a family cheer during a news conference, Wednesday, Jan. 30, 2013, for NFL football's Super Bowl XLVII in New Orleans. Their sons will be coaching against each other in the Super Bowl on Sunday. (AP Photo/Gerald Herbert)