Masterful strategy of the ravens at the end

Well played. But I don't get why Ginn didn't fair catch. The odds of a hail Mary have to better than the odds of a return.

And if you figure that the 49ers get one play (hail Mary) and they have to complete it to win - it doesn't matter whether the Ravens take the safety. But it did run then clock down to ensure that they only had one play.

But if the 49ers fair catch either way - the safety only eliminates the possibility of two 49ers plays.