Joshua outlines his own determination...
"Over the years I've been in camp, we stay disciplined to protect our dreams. If he wants to box, we can box. If he wants to go to deep waters, you know I come to fight. We don't play games. We're here to go to war. We've got too generals in there and the best army wins.
"I'll probably go and try and take his head off. I'm a fighter. I'll walk through two to give him five. If I have to show technical ability, I'll do that. I want this so I'm ready to swim through deep waters to get it."
ALL ON THE LINE
Joshua has a stark message...
"It is a risk. Every fight can be your last fight. You know the stories of boxing and how dangerous it is. Let's scrap all this 15, 16 fight nonsense and who's champion - this is just me and Charles going toe to toe.
"The undercard is tremendous. There are fights that could headline themselves. We've got Conor Benn making his debut and Ohara Davies, Brian Rose. It's unbelievable so they've got to tune up from the get-go and watch these boys."
MARTIN KEEPS IT SIMPLE
The champion doesn't have a lot to say... to start with.
"At this point, I become short for words. I don't do too much talking because I'm a boxer. I come to fight. We're geared up and I'm ready. Shout out to my team; everyone who was with me along the journey.
"The O2 is my arena. I'm comfortable everywhere I go. When I first fought at Madison Square Garden I went in there and performed. It's the same thing. I love what I do and I'm a performer. When eyes are on me, I'm going to perform."