The New England Patriots started the second half with two turnovers, which led to two easy 49ers touchdowns and a 31-3 deficit.
But since then, the Patriots have had two long touchdown drives, and now trail 31-17 early in the fourth quarter. And as unlikely as a comeback would be, they still have a pulse. And after facing a 28 point deficit a few minutes ago, that's about the best you could ask for.