Robinson vs. Turpin II Marciano vs. Walcott I Moore vs. Johnson V Ali vs. Norton II Muhammad vs. Johnson I Leonard vs. Hearns I Witherspoon vs. Bruno Barkley vs. Hearns I McCall vs. Seldon (a bit of an overlooked one) Foreman vs. Moorer
Nonito Donaire Vs Vic Darchinyan 2 Donaire was down by 4 points on 2 cards going into the last 2 rounds.
There is an exciting Cruiserweight title fight from the late 80s (I know, oxymoronic), that fits the bill. Glenn McCrory/Siza Makathini. Glenn rises from heavy early knockdowns and losing the first five rounds, to sweep everything from the sixth onwards, on the way to stopping the South African in eleven.
Kind of, but that was a close fight throughout. Andries had an early lead, but Harding's body attack took its toll and he gave Andries a beating before stopping him.
That one extremely dull though. My mistake though, Robinson was not behind, he was just in danger of being stopped.