Colin Kaepernick got tripped up and tossed down, then still nearly led the greatest Super Bowl comeback in just his 10th career NFL start. Rarely rattled on an impressive path to the Super Bowl, San Francisco's second-year QB finally showed some inexperience on football's big stage. Not to mention lots of guts. But it wasn't quite enough to lead the 49ers all the way back from a 22-point deficit.