Postpublished at 23:56 Greenwich Mean Time 13 February 2021
Right, that's all from us tonight but I'll leave you with Luke Reddy's report on a massive upset.
Warrington knocked out in round nine by Lara
Warrington was a 1-25 betting favourite
Warrington floored heavily in round four
Undefeated Warrington's first bout after 16 months of inactivity
The featherweight vacated the IBF world title in January
Luke Reddy and Gary Rose
Right, that's all from us tonight but I'll leave you with Luke Reddy's report on a massive upset.
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No post-fight interview from Josh Warrington because he has gone to hospital for precautionary checks.
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Eddie Hearn, speaking to Sky Sports: "This is why it's the best sport in the world. No-one gave Lara a chance but we knew he could fight. We didn't think he'd beat the number one featherweight but he did.
"I've haven't seen bravery in the ring like I saw from Warrington in a long, long time. Warrington was erratic. The ring-rust showed. He got caught and never recovered. How he got through the fourth round I won't know.
"He was running on empty and his bravery was incredible.
"For Warrington it is a crushing blow. Back to the drawing board.
"No excuses, he was beaten by a hungry Mexican who has changed his life."
Mauricio Lara, speaking to Sky Sports: "We worked really hard for it and it worked out how we planned. Our confidence was because we believed we could do it.
"We were working round by round. It worked how we planned. He is number one in the world and there is a reason he is number one so we took it round by round.
"The biggest thing for me outside the ring is my family. I am looking forward to celebrating with them and seeing them again."
Steve Bunce
Boxing pundit on BBC Radio 5 Live
I hope Lara does the sensible thing and makes plenty of money where he goes next. Josh will be back. He will go through a torrid few days, maybe even in a torrid few weeks, but he will come back more determined. One thing he will not do is give one excuse. It is what happens in boxing and it is what happens in big time boxing. Sure it was a shock but it was just boxing.
First defeat in 31 fights for Josh Warrington, where does he go next from here?
Lara beats Warrington in the ninth
Steve Bunce
Boxing pundit on BBC Radio 5 Live
The kid Lara just looked relaxed. He looked like he was enjoying himself in there. What guts he showed. He was fighting purely and utterly on instinct. He was doing what he had to do but he had no idea why he was doing it. He was phenomenal.
He has gone to the home country of an unbeaten champion and has entered that ring fearless.
Josh Warrington is eventually able to get up and make his way over to his own corner. He then goes over to congratulate Mauricio Lara.
Not to be for Warrington, but what a fight.
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Steve Bunce
Boxing pundit on BBC Radio 5 Live
Warrington fought from the first bell with a recklessness. He was smart once he was hurt, that's when he got smart.
It was a crazy, chaotic start, from the fourth, all bets are off.
Barry Jones
Former super-featherweight world champion on BBC Radio 5 live
From round four on, Warrington wasn't steady on his legs.
Fatigue played its part more than the shots.
Mike Costello
Commentator on BBC Radio 5 Live
We have seen one of the biggest upsets in a British ring in recent years.
Round nine
Warrington is down! All over and what an upset!
A big left from Lara finds its target and it is too much for Warrington as he hits the floor.
Massive shock as Warrington suffers the first defeat of his career.
Trainer Joe Gallagher...
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Round eight
Bit of a scrappy start to the round with both fighters beginning to get tired. A good combination gets through from Warrington before he takes a jab from Lara.
Warrington gets a good jab through in the final few seconds of the round that clearly hurts Lara but still he comes forward.
This is a real battle. Lara has never been beyond 10 rounds before, he's looking good for that tonight.