Sept 23 - The San Francisco 49ers suffered a shock 24-13 loss to the Minnesota Vikings while the New Orleans Saints sunk to 0-3 with an overtime defeat by Kansas City in the National Football League on Sunday. To add to the surprises the Cincinnati Bengals spoiled rookie Robert Griffin III's home debut for the Washington Redskins by coming away with a 38-31 win. The biggest upset though was the 49ers, who were expected to challenge for the Super Bowl and having already beaten Green Bay and Detroit. ...