Groves wins with fourth round knockout, fights Chris Eubank Jr in the World Boxing Super Series semi-finals
Groves has won 27 of his 30 professional fights, Cox loses for the first time in 25 bouts
Groves successfully makes the first defence of his WBA world super-middleweight title
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Image source, Getty ImagesAlex Bysouth's report is live on our boxing pages as WBA super-middleweight champion George Groves defeats Jamie Cox in the World Boxing Super Series quarter-final with a brutal body shot in the fourth round doing the damage.
We will end our live text there, so thanks as always for joining us and we will see you again soon.
Some quotes from former world cruiserweight champion Tony Bellew, who will be looking for a second heavyweight win over David Haye when the pair meet in December.
Bellew enjoyed the action but tips fellow Liverpudlian Callum Smith to be the overall winner of the World Boxing Super Series event.
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Some reaction from the world of boxing...
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George Groves wins by fourth round knockout, fights Chris Eubank Jr next
Promoter Kalle Sauerland has his say on the upcoming Groves v Eubank fight.
"It is the fight everyone wanted, it is a super fight, a mega fight and we are going to find the right platform for it. It will be in January or February it will be in Britain."
Image source, Getty ImagesGeorge Groves wins by fourth round knockout
Chris Eubank Jr gets into the ring, to give the occasion a bit more spice.
Groves is asked what he thinks of his next opponent. He says: "Eubank has been one of my sparing partners, he knows what I am about. It was not too tough tonight, I'm still fresh. Eubank has never boxed anyone like me, he has the momentum but has not fought someone like me."
Eubank is asked what he thinks of Groves' performance. "It was a good fight, he did what he had to do, not too many cuts and bruises so we are on for January," said Eubank.
"It was a nice body shot. Respect to Jamie Cox, Groves had that more experience. Now we have the super fight for the fans. Sparing is history, what matters is what he does in January. I think I'm the number one seed in my mind."
"Eubank is just not big enough to beat me," concludes Groves.
Image source, Getty ImagesGeorge Groves wins by fourth round knockout
And now let's hear from the winner, George Groves, who tells ITV Box Office: "I want to say thank you to everyone who came here tonight. I was boxing another Briton so I was expecting the crowd to be split.
"I picked him (in the draw) because I believe he was the most dangerous of the unseeded fighters. I knew he was tough, I trained alongside him 12 years ago, I knew what he was about and I didn't want an easy fight. Roll on to the next dude, whoever that is.
"I was landing big body shots the whole night, I knew his power of recovery was good. It was a crippling shot, I knew he would not get up. Don't give me a chance to make a shot to the body, you won't get up."
Image source, ReutersGeorge Groves wins by fourth round knockout
First off, let's hear from the beaten fighter Jamie Cox. He tells ITV Box Office: "Groves placed the shot greatly, he is a very good champion, I knew that.
"I made a mistake and he made me pay. It was a great fight up to then, I was coming into the fight and he landed one to the body. I thought he would be stronger. I could handle his power, but he placed the shot very well."
Image source, PAGeorge Groves wins by fourth round knockout
Some fiery interviews going on at the moment.
No, he can't. George Groves wins it to retain his WBA Super-Middleweight Championship and move into the semi-finals of the World Boxing Super Series.
Cox aimed to throw a left hook, it didn't do any damage and left open his body for a counter. Groves throws a crushing, accurate right into the ribs of Cox, who falls to his knees and he can't beat the count.
Groves wins.
Image source, Getty ImagesWell, it had been a good start to the round by Cox, but Groves attacks and lands a brutal right to the body.
Cox crumples to his knees. Can he get up in time?
Image source, ReutersRound 4: George Groves v Jamie Cox
Jamie Cox lands a left hook, and then another with Groves, not for the first time tonight, forced back on to the ropes.
It is a better round from Cox so far, after he may well have seen the third slip away from him.
Image source, PARound 3: George Groves v Jamie Cox
A frantic, thrilling opening nine minutes at Wembley Arena. Cox has certainly given Groves plenty to think about, but has also left himself open to a number of shots from Groves.
Image source, PARound 3: George Groves v Jamie Cox
Jamie Cox attacks but walks into a beautiful right uppercut from George Groves.
Seconds later Cox is on the canvas, but no punch was thrown and he just lost his balance. No knockdown.
Image source, PABoxing trainer Dave Coldwell...
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Round 2: George Groves v Jamie Cox
Success for Groves, who lands with a straight right and another left hook.
Referee Steve Gray separates them as they nearly clash hands. Great stuff so far from both men. This will not go the distance if this carries on.
Image source, ReutersRound 2: George Groves v Jamie Cox
Cox looks the happier of the two men and lets out a smile. This is not what we expected. Cox has landed the better shots so far, midway through the second.
Round 2: George Groves v Jamie Cox
The challenger may well have done enough to win the opener after that flurry of lefts late in the round.
On to round two and Cox, buoyed by his success in the first round, lands with an excellent left hook. Groves forced back into the corner.
Image source, ReutersRound 1: George Groves v Jamie Cox
Cox lands with two powerful left hands to rock Groves back on to his heels. Great shots from the underdog. Groves fights back later in the round.
"He hasn't got an engine," Cox is told by his corner.
Image source, ReutersRound 1: George Groves v Jamie Cox.
Groves takes up an early position in the centre of the ring, popping out the left jab. Cox dances forward trying to land with the straight right, but Groves jumps backwards looking to counter with the right hook.
Image source, .Here we go. Chris Eubank Jr watches on ringside. He fights the winner in January. Who will that man be?