The story of the week as the San Francisco 49ers prepare to host the Indianapolis Colts will be the reunion between Jim Harbaugh and Andrew Luck.Harbaugh, the 49ers' coach, coached Luck, one of the brightest young quarterbacks in the league, at Stanford. However, it isn't the only reunion during the game.San Francisco tight end Vernon Davis will face his younger brother Vontae Davis, who is a Colts' cornerback. It will be the first time the two brothers will meet.