When someone states "I would rather swallow my own blood and die in the ring than quit".

That should tell you two things about the fighter:

He wont be thinking about timing and angles as much as he will be intent on coming forward and fighting with his heart to test yours out.

Thats not a good quality to have as the no 1 for a comeback plan if yor not 100 % fit.

If he tries a comeback, he is going to have to be much more mentally measured and know his limits than he was originally.