Five nuggets of knowledge about Super Bowl XLVII, in which the Baltimore Ravens face the San Francisco 49ers on Feb. 3:1. Family affair: The coaching Harbaughs, Jim and John, will of course be on opposite sidelines when Jim's San Francisco 49ers face John's Baltimore Ravens for the Lombardi Trophy. Let's get some of the specifics out of the way early. John turned 50 on Sept. 23, the day his Ravens played New England in a Sunday night game. Jim turned 49 on Dec.