IBF, WBO, WBA, IBO heavyweight champion Anthony Joshua has questioned Dillian Whyte's killer instinct.

Joshua was ringside at Matchroom's Fight Camp in Brentwood, and watched Whyte get knocked out in the fifth round of his heavyweight fight with Alexander Povetkin.

Joshua holds stoppage wins over both Whyte and Povetkin - stopping each man in seven rounds.

With the victory, Povetkin walks away with the WBC's interim-title and is now the mandatory challenger to full champion Tyson Fury.

Whyte had controlled the first four rounds - including scoring two knockdowns in the fourth.

Povetkin landed a massive uppercut in the fifth, knocking Whyte out cold with shot.

Joshua felt Whyte missed his opportunity to take Povetkin out and as a result he paid a big price.

"I asked [Sky Sports expert] Johnny [Nelson], 'Does Dillian still have that instinct in him?' Because the fight was called maximum violence," Joshua told Sky Sports.

"When he had the opportunity to take him out, I wanted to see that maximum violence. That's why for me, when I smell blood, I go in there to take someone out, but sometimes you can get caught in the exchange.

"But at the end of the day, if you leave it a round or two later, as we've seen there anything can happen. The tactic go out the window. You've just got to remember this is a fight, you've got to take the man out and move on to the next."

Joshua, who suffered his first career defeat in 2019 and later bounced back, expects Whyte to do the same.

"This is just a blip in the career. People are going to talk all sorts of stuff about Dillian. Dillian is a fighter, I stick with him as fighter and say, 'dust yourself off, get back up, and go again,'" Joshua said.