How did he ever get up and continue after that knockdown

[The Iron Man]

This is just unbelievable! I heard a great quote from Holmes saying the punch knocked him out and hitting the canvas woke him up again! - The Shaves KD

[Prince_Pugilist]

Maidana/Khan, that first round knock down had Maidan gasping for breath. I thought his ribs were broken. They way Maidana came back was awesome.

JMM knocked down against Pacquiao for the 3rd time in their first time, JMM couldn't even walk straight. Again, great come back in the later rounds.

Douglas against Tyson, people seem to forget it was a pretty heavy knock down and Tyson jumped on him like a mad man but Douglas ended up winning via KO!