NEW ORLEANS -- Say this about the San Francisco 49ers: They can take a punch. They can take a lot of them, in fact. And if a power outage gives them 34 minutes to clear the cobwebs, look out. But it's tough to win a championship playing the way San Francisco did during this 34-31 defeat to the Baltimore Ravens in Super Bowl XLVII.It's tough to win a championship when allowing three first-half scoring passes and a kickoff return for a touchdown to open the third quarter.