Anthony Joshua vs Robert Helenius LIVE: Start time, result, undercard and stream

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Conor McGregor calls out KSI

After the fight, McGregor takes aim at YouTube star KSI after congratulating Joshua and Helenius on their performances.

Eddie Hearn opens talks for Anthony Joshua vs Francis Ngannou heavyweight fight

Anthony Joshua thanks Robert Helenius for the fight

He teases TWO fights before year's end, but Wilder is expected as his next opponent in January.

Anthony Joshua beats Robert Helenius by KO in R7

Huge win for Joshua

Anthony Joshua vs Robert Helenius - Round 7

AND DOWN GOES HELENIUS!

ANTHONY JOSHUA GETS THE KNOCKOUT VICTORY!

Anthony Joshua vs Robert Helenius - Round 6

Helenius seems to be growing in confidence the longer this goes on.

Joshua definitely takes the round again but he's struggling to find the right hand.

Anthony Joshua vs Robert Helenius - Round 5

Joshua's work getting cleaner now, he's speeding things up.

There's no doubt who's winning this fight, but Helenius is growing in confidence and getting into it now.

Likely 4-1 Joshua at this stage as the crowd begin to boo.

Anthony Joshua vs Robert Helenius - Round 4

Joshua rocks Helenius with a big right about a minute into the round!

Boxing fans brand Anthony Joshua vs Jermaine Franklin decision "a disgrace"

The difference in hand speed is very clear now, Joshua's jab bloodies Helenius' nose.

It's not quite the brutalising performance Wilder landed, but solid work from the Brit.

Anthony Joshua vs Robert Helenius - Round 3

Joshua getting to work, looking a big counter for Helenius to walk on to.

Big right hook hurtst Helenius with 30 seconds left in the round.

A jab from Helenius has marked up Joshua's left eye. Believe it or not, this is a fight!

Anthony Joshua vs Robert Helenius - Round 2

Solid left from AJ early. Slow pace, not the kind of fight you want with a lumbering big heavyweight like Helenius, though.

Joshua lands a big right, much better round for the hometown fighter this time.

Very good round for Joshua. He'll probably be two up on the cards.

Anthony Joshua vs Robert Helenius - Round 1

Joshua takes centre ring early but it's Helenius who lands first with a little combination.

Both men letting their hands go, but Helenius impressive early. I'd give that round to the Finn, doubt the judges in London will, though.

Both men in the ring

Here we go! Main event time!

Anthony Joshua walks second

Violinist on stage performing his music as he emerges in a red robe!

Robert Helenius makes the walk

He was fighting at a medieval castle a week ago, now he headlines a packed out O2 Arena.

KSI booed out of the building

He cuts a vicious promo on Tommy Fury, and the crowd hate him! Rare reaction for the usually beloved YouTube star.

Main event next

The stars are here, the stage is set. It's showtime!

Derek Chisora bts Gerald Washington by UD

Couldn't split them, that should be it for both men.

Derek Chisora vs Gerald Washington - Round 10

Mercifully, this fight is over. Time for both to hang up the gloves.

Derek Chisora vs Gerald Washington - Round 9

The pace has slowed significantly for both men as the fight likely hangs in the balance.

Tenth will decide it.

Derek Chisora vs Gerald Washington - Round 8

Chisora trying to put it on Washington as we head to the later rounds.

Derek Chisora vs Gerald Washington - Round 7

This fight is turning in favour of Chisora now as he appears to have hurt his opponent's confidence.

Derek Chisora vs Gerald Washington - Round 6

Better for Chisora now.

He begins to settle in to the fight and gets to work utilising his power.

Derek Chisora vs Gerald Washington - Round 5

The corner advice from the London shoot coaches bizarre here as Chisora is told Washington is about to go.

It seems the opposite is the case in the fifth.

Derek Chisora vs Gerald Washington - Round 4

Chisora coming forward after a doctor checks his cut.

Big opportunity for the Brit, but he gets clipped with a right hand combo by Washington.

Chisora getting hit a lot.

Derek Chisora vs Gerald Washington - Round 3

Washington taking advantage of that injured eye, landing big shots on Chisora.

But the Brit able to move around well and get some digs in of his own.

That injury could be a problem.

Derek Chisora vs Gerald Washington - Round 2

Washington on top in this round as he bloodies the right eye of Chisora, who walks on to shots!

Right at the end of the round Chisora goes down, but it's ruled a push.

Derek Chisora vs Gerald Washington - Round 1

We get underway with our co-main event as Chisora takes the centre of the ring early!

Both men swinging with Washington landing a big right hand that hurts Chisora!

Washington looks in tremendous shape, good first round for the American.

Here comes Derek Chisora

Gerald Washington makes the walk before London erupts for Chisora!

Conor McGregor just arrived at ringside

Bit of a fracas as the superstar arrives alongside Ebanie Bridges.

Filip Hrgovic bts Demsey McKean by R12 KO

Second stoppage of the night, but that was not a great showing from Hrgovic.