Richie Woodhall
Former world champion on BBC Radio 5 live sports extra

"Tremendous victory for Eubank Jr. Punch perfect. O'Sullivan gave it a good go but he took too many hard punches."

A retirement. I did not see that coming. The bell had gone, round seven was over but Gary O'Sullivan's corner have their say and tell the referee this one is finished. Their man has had enough punishment.

Image source, Getty Images

The quietest round we have had for some time. No gas left lads?

Gary O'Sullivan's footwork is game. When each punch or combination lands on him he just gets up on his toes with a little trot and comes back for some more. 

His guard is up and gets peppered on both sides by Chris Eubank Jr.

Why wouldn't you listen to the coach of the heavyweight world champion?

Image source, PA

"EUBANK, EUBANK, EUBANK," the crowd are behind the Briton.

We enter the last minute of the round and Gary O'Sullivan is back in the middle of the ring - talk about someone being as hard as nails.

It's a defensive display now though, the Irishman is soaking it up. Either he knows he has something in the locker or he's in trouble. A leaping right as the bell rings is wild and wayward from O'Sullivan.

Richie Woodhall
Former world champion on BBC Radio 5 live sports extra

"Eubank Jr must be wondering what he has to do to put this guy down. O'Sullivan is as hard as they come.I still think there's a twist"

Like a lion in the wild, suddenly Chris Eubank Jr pounces on his prey, from the middle of the ring a cluster of eight or more punches pack so much power that he has driven O'Sullivan back to the ropes. Speed and power, this is non-stop action...

Image source, Getty Images

Richie Woodhall
Former world champion on BBC Radio 5 live sports extra

"It's the precision of Eubank Jr. I think the tactic without question is that they want Eubank Jr to punch himself out."

A gorgeous right hand-left combination from Eubank Jr as we enter the final 90 seconds of the round.  This really is a superb contest, three shots from Eubank Jr land and will slowly, slowly suck life out of the underdog.

Thirty seconds remain of the fifth, they hug in the middle of the ring, separated, they engage again, the spring is in Eubank Jr's legs, his round all day long.

Image source, Getty Images

Left jab, left jab again from Chris Eubank Jr. Nearer the ropes than his man for most of this fight he knows his speed can get him out of trouble. Right cross followed by a left, he looks to be growing into this a bit more now.

He's superbly conditioned, will that tell...

Richie Woodhall
Former world champion on BBC Radio 5 live sports extra

"You can see Eubank's skills are far superior to O'Sullivan's but he's a hard guy this fella."

Image source, Reuters

Interestingly, the showmanship we saw in the first round has disappeared. Both men know this will now be a grind. They have stunned one another. Uppercut and left hand land from Eubank, he also lands a body shot and slips beautifully out of reach of the counter punch.

My of my, these two look as excited as a kid at Christmas. They come out and start trading again but the referee plays humbug and tells them to clean it up early in the fourth. Telling off over, they come back for more...

Image source, Reuters

Liam Smith is the WBO world light-middleweight champion and he thinks O'Sullivan has a chance in this all-out war.

A left hook to the body from Chris Eubank Jr, a left to the side of Eubank's body in response by Gary O'Sullivan.

There is a relentlessness to this and that was Gary O'Sullivan's round for sure. He cornered his man and landed a stunning and very painful right hand to the face.

This could be the fight of the year if it lasts much longer as Gary O'Sullivan is game and coming back for some. He catches Chris Eubank Jr with a right and hurts him. Wow, you cannot take your eyes off it. Talk about gutsy from O'Sullivan who looked to be a level below his man a few minutes ago.

If this lasts 12 rounds I will eat my computer screen. Wonderful, rapid hitting from Chris Eubank Jr.

He teed the whole thing up with a left shot to the body and just grew into a flow of punches. A left uppercut really hurt O'Sullivan and backed against the ropes he was vulnerable. The fans were on their feet and O'Sullivan stayed on his... just.

Image source, Reuters

Richie Woodhall
Former world champion on BBC Radio 5 live sports extra

"What a tremendous round that was for Eubank. A solid 10-8 round. "

Bang, some action, it's going off in there and Gary O'Sullivan is running for the hills. He has no choice, the punches are flowing from Chris Eubank Jr...

It's a sustained spell of pressure which contains a wonderful uppercut. What ferocity, suddenly O'Sullivan's moment in the big time is in danger of ending inside six minutes.

Image source, BBC Sport

Chris Eubank Jr. has chosen to follow a similar path to his namesake, Chris Sr, since he first laced up the gloves at the age of 16. 

His father, who was a former world middleweight champion and an infamous character in the ring, sent his son to Brighton College where he excelled in many sports such as athletics, swimming and rugby. But eventually he was expelled for fighting. 

Eubank Sr ordered his son to pack his bags to go live with his mother in America, where he learned his trade after he became a two-time Golden Gloves champion, just like his father did in the 1980's. 

Since then, Eubank Jr has trained and sparred with the best boxing has to offer including the Cuban Olympic team, Floyd Mayweather's dad and Carl Froch. So could we be looking at the next middleweight great?