ANTHONY JOSHUA has explained where it all went wrong after he was KO'd by Daniel Dubois.
The former world champion believes the brawl descended into a shoot-out and it was his opponent who landed the killer shot.
Joshua, 34, was rocked badly in the opening round by an overhand right from Dubois, and it took him several rounds to recover.
His game plan went out of the window and although he recovered to wobble Dubois in the fifth, he ultimately paid the penalty for his full frontal approach.
Explaining why his lost, Joshua told : "I caught him with a good shot I think and then I tried to go for it and then I got caught with an overhand right when I was throwing the upper cut.
"Thing is, I wasn't setting shots up. In a shoot-out like that you've really got to be a bit more sniper-esque.
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"But when you've been hit a few times you're in survival mode, I just want to get him out of there.
"We had a shoot-out and he hit me."
A fourth defeat for Joshua has led some to question whether he should continue, but he has remained defiant and insisted he will return as long as there is an appetite for it.
Many fans believe his chance to fight Tyson Fury has gone but AJ insists he merely had a bad night.
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Asked if he will retire, Joshua responded: "Nah. We're gladiators. We had a bad night at the office.
"Listen if people want to see me fight, I'll fight. I'll fight that's it."
Round by round: How Dubois demolished Joshua
ANTHONY JOSHUA bravely picked himself up from the floor against Daniel Dubois - until he could no more.
AJ was floored four times in five rounds by Dubois before a thudding counter right closed the show in dramatic fashion.
Here, SunSport’s Jack Figg takes you round-by-round from the Wembley war.
ROUND 1
Dubois comes out sharp with the jab as Joshua bounces around struggling to deal with the piston-like left.
Huge right hand from Dubois has AJ staggering backwards with his hands far too low from the opening bell.
Joshua made to pay for the mistake as he circles out with his hands down and gets dropped by an overhand right.
ROUND 2
Joshua - saved only by the bell after being floored - struggles to get going as he takes shots to the face.
AJ is tottering and teetering around the ring with his guard again dangerously low and inviting pressure on.
Joshua is attempting to get back into the bout but his jab looks far too lazy - he doesn't look to have recovered from the knockdown.
ROUND 3
AJ comes out with more intent but swings wildly with a right and connects with only thin air.
Dubois pours on the pressure and hammers Joshua into the corner scoring another knockdown.
The bell sounds but Dubois lands one or two afterwards - again AJ is saved by the clock as the writing looks on the wall.
ROUND 4
Disaster strikes again with Joshua floored once more - losing his balance as he touches the canvas.
The referee gives AJ another fighting chance and Dubois lands a low blow - giving the challenger some valuable respite.
Dubois slows down as four rounds come to a close with Joshua showing sensational resilience to hang in there.
ROUND 5
Joshua lands a huge right hand and Dubois legs buckle - an astonishing turnaround looks to be on the cards.
AJ pins Dubois onto the ropes and attempts one of his signature uppercuts but the countering right hand gets there first.
Joshua is caught flush on the chin, dropped once more and this time out for good. Dubois scores a stunning KO win.
'Are you not entertained? I'm a gladiator' - What Dubois and Joshua said after brutal fight
DANIEL DUBOIS annihilated Anthony Joshua’s dream of becoming a three-time world heavyweight champion, writes Wally Downes Jr.
Joshua was floored FOUR times as Dubois landed an astonishing fifth-round knockout in front of a record 96,000 Wembley crowd and millions of TV viewers to retain his IBF belt.
AJ, 34, never recovered after being downed in the first round of last night’s Battle of Britain showdown as a huge Dubois right-hand haymaker caught him flush on the chin.
Here's what they said after the fight:
DANIEL DUBOIS
“Are you not entertained? I’m a gladiator, a warrior to the bitter end. This is the biggest win of my career. I couldn’t let this opportunity go and now I want to go to the top level of this game.
“I’ve been on a roller-coaster ride and this is my time. I’m not gonna stop until I reach my full potential.”
ANTHONY JOSHUA
“As p***ed off as I am, it is what it is.
“I had a sharp, fast opponent and there were a lot of mistakes from me. Credit to my opponent and his team.
“We rolled the dice and came up short. You know I’m p***ed but I’m going to keep cool and give respect to my opponent.”
FRANK WARREN (DUBOIS' PROMOTER)
“It was a phenomenal fight, like Hagler v Hearns.
“A brilliant fight and everybody has seen a champion’s performance tonight.
“Daniel has shown his courage, his skills.
“AJ caught him with a shot towards the end and I was worried, but what a fabulous, fantastic fight.”
EDDIE HEARN (AJ'S PROMOTER)
“AJ shipped a huge right hand in the first round and was fighting on heart.
“He hurt Daniel at the end of the fourth and then again in the fifth, but got greedy and walked on to a right hand and that’s all she wrote.
“I’m sure Anthony will exercise the rematch clause.”