(New Orleans, LA) -- Super Bowl 47 tomorrow will mark the first-ever meeting between head coaching brothers. Baltimore Ravens coach John Harbaugh and San Francisco 49ers coach Jim Harbaugh both know that only one of them will win. For the losing side, John says it will be a bitter pill to swallow. At a joint press conference yesterday, both Harbaughs deflected the focus of the historic game from themselves to the players, but neither said they'd have a problem taking away the other's dream of winning a championship. Afterwards, the Harbaugh brothers posed for pictures with their parents and their 97-year-old grandfather, who insisted upon seeing the game in person.