England's Leigh Wood knocks out Belfast's Michael Conlan to retain WBA featherweight title
Wood right-hand punch ends fight in 12th round at Motorpoint Arena in Nottingham
Muted celebrations as Conlan falls out of the ring and is taken away for treatment
Conlan, who had knocked down Wood in round one, was conscious as he left the arena
Caoimhin Agyarko and Terri Harper won undercard fights earlier
That's your lot for what has been a dramatic night of world championship boxing.
You can read Michael Emons’ report from ringside as Leigh Wood retains his WBA featherweight world-title with an incredible last-round knockout of Michael Conlan in Nottingham.
Ronald McIntosh
Boxing commentator on BBC Radio 5 Live
Leigh Wood retains his WBA title. But my goodness, what did he have to go through there? A life changing opportunity for him tonight and he delivered.
Michael Emons
BBC Sport at the Motorpoint Arena, Nottingham
A stark reminder of the dangers of this sport and the levels of bravery all fighters show when they get into the ring.
After the initial celebrations at the knockout victory by Leigh Wood, excitement quickly turned to anxiety as it became clear Michael Conlan was in a bad way and needed medical attention.
On the opposite side of the ring a fan, wearing a green shirt, tried to get into the ring before he was wrestled by security and taken away.
Both Leigh Wood and Matchroom promoter Eddie Hearn said their only thoughts were not of celebration, but with Michael Conlan and everyone is praying he is OK.
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Leigh Wood speaking to DAZN: "Thank you to all the fans. All the Irish travelling fans. First of all I just want to say I hope Michael is OK. I can't celebrate until I know he's alright. My thoughts are with him at the minute."
Former world champion Josh Warrington could be the next man Wood faces. Warrington will challenge Kiko Martinez later this month for the IBF featherweight title. A win will set up a mouthwatering Wood-Warrington all-British unification fight.
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Ronald McIntosh
Boxing commentator on BBC Radio 5 Live
Leigh Wood can now look forward to bigger things here in the featherweight division. He has somehow turned this one around and retained his WBA world featherweight title.
A pulsating contest sees Leigh Wood remain champion of the world.
When Leigh Wood was knocked out in the final seconds of round one, and then absolutely dominated at the start of the second, I did not think it would go past three rounds.
There were large parts in the middle and late rounds where Conlan was putting on a boxing masterclass.
Then came that 12th round knockout. It, rightfully, has not been repeated on the TV broadcast.
It's often easy to get carried away in this sport but this has been one of the most action-packed and enthralling nights of boxing I have witnessed in a very long time.
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Skye Nicolson
Australian boxer on BBC Radio 5 Live
Anything can happen in boxing. Boy did they deliver tonight.
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The plaudits for Leigh Wood and well wishes for Michael Conlan continue on social media...
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Leigh Wood's hand is raised as David Diamante announces him as winner by 12th round stoppage. His celebrations are low key. Once again, he signals to the excited crowd to hold off their celebrations.
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Leigh Wood leaves the ring and embraces his family. Emotional scenes in Nottingham.
Michael Conlan is leaving the arena on a stretcher. Steve Bunce on radio commentary says he is talking and looking up at the crowd.
All that matters right now is his health.
Ronald McIntosh
Boxing commentator on BBC Radio 5 Live
Michael Conlan has been knocked out of the ring by Leigh Wood. Leigh Wood is asking for fans to hold down their celebrations.