All you need to know ahead of Kell Brook v Errol Spence Jr including the latest odds, predictions, records, undercard details and how to watch on TV.
Kell Brook defends his IBF welterweight title at Bramall Lane in his home city of Sheffield on Saturday night (May 27) - but his unbeaten opponent Errol Spence Jr is the marginal favourite to dethrone him.
Brook (37-1, 26KOs) has held the belt since beating Shawn Porter three years although his last bout, when he stepped up in weight to face superstar Gennady Golovkin last September, ended in defeat.
This should be a more evenly-matched affair - albeit against a highly-rated American (21-0, 18KOs) - and Brook will be hoping a sell-out Sheffield crowd will be roar him on to a thrilling triumph.
Meanwhile, George Groves fights Fedor Chudinov for a world title, while Dave Allen, Jamie Cox and Olympian Anthony Fowler are also on the card.
Here's everything you need to know including the full fight card running order, latest Sky Bet odds, fighter records, details of how to watch on TV and our expert predictions.
Brook v Spence Jr contents
1. Full fight card & times
2. Latest odds
3. Tale of the tape
4. Our big-fight prediction
5. Brook & Spence records
6. Big fight news
7. Undercard information
8. How to watch and book
Brook v Spence Jr: Full fight card & times
Date: Saturday May 27, 2017
Venue: Bramall Lane, Sheffield
TV Start Time: 1800 BST, Sky Sports Box Office
Main event time: Around 2300 BST
Starting with the headline event, in descending order. Times approximate & running order subject to change. Fights 12 rounds unless stated. More fights to be added when announced.
Kell Brook (5/4) v Errol Spence Jr (8/13)
(IBF world welterweight Title - 2300)
George Groves (1/5) v Fedor Chudinov (3/1)
(WBA world super-middleweight title)
Joe Cordina v Arturs Selivanovs
(4 rds Super-featherweight)
Lawrence Okolie (1/100) v Russ Henshaw (16/1)
(4 rds Cruiserweight)
Anthony Fowler (1/100) v Arturs Geikins (16/1)
(4 rds middleweight)
David Allen (1/4) v Lenroy Thomas (3/1)
(Vacant Commonwealth heavyweight title)
Jamie Cox (1/25) v Lewis Taylor (10/1)
(WBA Continental super-middleweight title)
Andy Townend (1/7) v Jon Kays (4/1)
(Vacant Commonwealth heavyweight title only on line for Kays - 1800 BST)
The following are the pre-live fights
Kyle Yousaf v Louis Norman
(6 rds super-flyweight)
Nadim Saddiq v Pal Olah
(4 rds welterweight)
Atif Shafiq v Dean Evans
(4 rds super-lightweight - 1645 BST)
Click on the Sky Bet odds for more fight markets
Brook v Spence Jr: Latest odds
Odds correct at 1600 BST on 25/05/2017
PRICE BOOST: Kell Brook to win by KO/TKO or DQ at 5/1 from 3/1
Errol Spence Jr is an odds-on 8/13 favourite with Sky Bet to win the fight, with Kell Brook priced at 5/4 and an unlikely draw is 20/1.
Both men have high knockout percentages on their respective records and Spence Jr to win inside the distance is 7/4, while for Brook to do the same is 3/1 (currently Price Boosted to 5/1). The champion to defend his title on points is 3/1 with Spence Jr to win on the cards 11/4. Sky Bet will give you evens if you just want to bet on the fight going the distance and 8/11 that it doesn't.
Both fighters are priced at 50/1 to win in the opening round while Brook to win between rounds 1-3 in the regular grouped round market is 22/1, rounds 4-6 11/1, rounds 7-9 10/1 and rounds 10-12 16/1.
There's other group round markets to check out, including Spence to win between rounds 1-4 at 10/1, rounds 5-8 5/1 and rounds 9-12 11/2.
There's also a whole range of RequestABet specials with Sky Bet including:
Brook to be knocked down in rounds 1-6 at 7/2
Spence to be knocked down at 4/1
Both fighters to be knocked down at 12/1
Brook to be knocked down in rounds 1-6 and win at 18/1
Both fighters to be knocked down and fight to go the distance at 33/1
Klitschko to be knocked down in round 1 but still win at 80/1
Click here for more markets and to place your bets!
Kell Brook v Errol Spence Jr: Tale of the Tape
KELL BROOK
Age: 31
Born: Sheffield
Fights: 37
Won: 36
Won By KO: 25
KO Percentage: 68%
Drawn: 0
Lost: 1
Rounds Boxed: 184
Height: 5ft 9ins
Stance: Orthodox
Reach: 69ins
ERROL SPENCE JR
Age: 27
Born: New York
Fights: 21
Won: 21
Won By KO: 18
KO Percentage: 86%
Drawn: 0
Lost: 0
Rounds Boxed: 77
Height: 5ft 9ins
Stance: Southpaw
Reach: 72ins
Brook & Spence Jr: Fight records
KELL BROOK
Here below is a full record of Kell Brook's (37-1, 25 KOs) professional boxing career.
Gennady Golovkin, September 2016 - LOST TKO (rd 5)
Kevin Bizier, March 2016 - WON TKO (rd 2)
Frankie Gavin, May 2015 - WON TKO (rd 6)
Jo Jo Dan, March 2015 - WON RTD (rd 4)
Shawn Porter, August 2014 - WON MD
Alvaro Robles, March 2014 - WON TKO (rd 8)
Vyacheslav Senchenko, October 2013 - WON TKO (rd 4)
Carson Jones, July 2013 - WON TKO (rd 8)
Hector David Saldivia, October 2012 - WON TKO (rd 3)
Carson Jones, July 2012 - WON MD
Matthew Hatton, March 2012 - WON UD
Luis Galarza, December 2011 - WON TKO (rd 5)
Rafal Jackiewicz, October 2011 - WON TKO (rd 6)
Lovemore Ndou, June 2011 - WON UD
Philip Kotey, December 2010 - WON TKO (rd 2)
Michael Jennings, September 2010 - WON TKO (rd 5)
Krzysztof Bienias, March 2010 - WON TKO (rd 6)
Michael Lomax, July 2009 - WON TKO (rd 3)
Stuart Elwell, January 2009 - WON TKO (rd 2)
Kevin McIntyre, November 2008 - WON TKO (rd 1)
Barrie Jones, June 2008 - WON TKO (rd 7)
Darren Gethin, March 2008 - WON RTD (rd 3)
Aleksei Stoda, October 2007 - WON PTS
Karl David, March 2007 - WON TKO (rd 3)
David Kirk, December 2006 - WON TKO (rd 1)
Duncan Cottier, October 2006 - WON TKO (rd 3)
Geraint Harvey, June 2006 - WON TKO (rd 3)
Ernie Smith, April 2006 - WON PTS
Ernie Smith, September 2005 - WON PTS
Jonathan Whiteman, July 2005 - WON TKO (rd 2)
Ernie Smith, May 2005 - WON PTS
Lea Handley, March 2005 - WON PTS
Karl Taylor, December 2004 - WON PTS
Brian Coleman, December 2004 - WON TKO (rd 1)
Leeroy Williamson, November 2004 - WON TKO (rd 2)
Andy Cosnett, October 2004 - WON TKO (rd 1)
Peter Buckley, September 204 - WON PTS
ERROL SPENCE JR
Here below is a full record of Errol Spence Jr' (21-0, 18 KOs) professional boxing career.
Leonard Bundu, August 2016 - WON KO (rd 6)
Chris Algieri, April 2016 - WON TKO (rd 5)
Alejandro Barrera, November 2015 - WON RTD (rd 5)
Chris van Heerden, September 2015 - WON TKO (rd 8)
Phil Lo Greco, June 2015 - WON TKO (rd 3)
Samuel Vargas, April 2015 - WON TKO (rd 4)
Francisco Javier Castro, December 2014 - WON TKO (rd 5)
Noe Bolanos, September 2014 - WON RTD (rd 2)
Ronald Cruz, June 2014 - WON UD
Raymond Charles, April 2014 - WON TKO (rd 1)
Peter Oluoch, February 2014 - WON KO (rd 4)
Gerardo Cuevas, December 2013 - WON RTD (rd 1)
Emmanuel Lartei Lartey, October 2013 - WON UD
Jesus Tavera, September 2013 - WON TKO (rd 1)
Eddie Cordova, July 2013 - WON KO (rd 1)
Guillermo Ibarra, June 2013 - WON KO (rd 1)
Brandon Hoskins, May 2013 - WON TKO (rd 1)
Luis Torres, March 2013 - WON UD
Nathan Butcher, January 2013 - WON TKO (rd 1)
Richard Andrews, December 2012 - WON TKO (rd 3)
Jonathan Garcia, November 2012 - WON KO (rd 3)
Our big fight prediction
Our boxing expert Simon Crawford has written an in-depth preview of the fight and is backing Kell Brook to win. You can click here for his full verdict but here below is a taster...
I think Brook will relish the role of underdog as, after all, he has made a habit of defying the odds throughout his career.
Few gave him a chance when he travelled Stateside back in 2014 to fight Shawn Porter for the IBF belt, but he deservedly took a points decision on the champion's home patch - an achievement precious few British fighters have been able to pull off down the years.
Then during a family holiday in Tenerife he was slashed in the thigh and initially there were doubts whether he would walk again, let alone box, but once more he showed his fighting spirit by battling back to full fitness.
After losing to Golovkin, Brook had plenty of options at other weights but the fact he has opted to come back down to 147lbs tells you how much this title means to him.
And the fact the fight is taking place at Bramall Lane, home of his beloved Sheffield United FC, is another tick in the plus column. Few fighters get the chance to perform in a big open-air arena and I believe a partisan crowd in the Steel City will serve to inspire him.
Much is being made of the fact Spence is a southpaw, but having spent all of his boxing life at the Ingle gym, Brook will have sparred every day with 'lefties' and it is a well-known fact he has beaten every southpaw he has faced.
Let us not forget either that this is a huge step-up for the challenger who will be fighting outside North America for the first time in his professional career.
The likes of Algieri and Van Heerden are solid operators but fringe wold level at best and Spence will walk to the ring with the expectation of a nation on him - that really is big pressure on young shoulders.
But there are two key factors as to why I think Brook will win on Saturday night.
The first is experience.
Brook has had more knockouts than Spence has had fights and dealing with such a big occasion is going to be crucial.
You can be the best fighter in the world but if you freeze on the big stage then you are as vulnerable as anyone else.
Secondly, and most importantly, Brook always finds a way to win.
Whatever obstacles have been put in his way and even when he has looked down and out, he has still somehow emerged victorious by digging deep and showing his resolve.
Taking on Golovkin was a calculated risk that did not pay off, even though he rattled the bigger man on several occasions.
But back down at 147 and fighting people his own size, I would happily back him against anyone.
Latest Big Fight news
Brook inside weight limit
Kell Brook and Errol Spence Jr weighed inside the welterweight limit before Saturday's fight. Click here to read
Brook: Experience will be key
Kell Brook's says memories of being a world title challenger will steer him past Errol Spence Jr this weekend. Click here to read
Spence not fazed
Errol Spence Jr says the pressure of being labelled the next Floyd Mayweather is not something that fazes him. Click here to read
Groves: This is my time
George Groves believes the time is right for him to be crowned a world champion when he meets Fedor Chudinov this weekend. Click here to read
Brook happy with shape
Kell Brook could not be happier with the shape he is in ahead of Saturday's world welterweight title fight with Errol Spence Jr. Click here to read
Undercard: Who is fighting and for what belts?
George Groves will be fighting Fedor Chudinov for the vacant WBA super middleweight championship in his fourth world title attempt following two epic clashes with domestic rival Carl Froch and a split decision loss to Badou Jack.
Since linking up with coach Shane McGuigan, the 29 year-old has secured four successive victories to pave the way for his latest world title tilt, and the 'Saint' is hoping to finally realise his ultimate ambition and capture the WBA belt.
Jamie Cox will be gunning for the winner of the Groves-Chudinov clash as he faces Lewis Taylor for the vacant WBA continental title and there’s a pair of Commonwealth title fights as David Allen faces Lenroy Thomas for the heavyweight crown and Andy Townend and Jon Kays meet for the super-featherweight strap.
Three Team GB Rio Olympians fight in the form of Joe Cordina, Lawrence Okolie and debutant Anthony Fowler, while there’s action for Brook’s Ingle Gym colleagues Atif Shafiq, Kyle Yousaf and Nadeem Siddique.
Brook v Spence Jr: How to watch
TV CHANNEL
Saturday's huge night of boxing in Sheffield will begin live at 1800 BST on Sky Sports Box Office (Channel 491) and Sky Sports Box Office HD (Channel 492), until around 0100 BST.
However, even if you are not a Sky TV customer you can still watch the big fight with Sky Sports Box Office via your PC/Desktop/MAC, NOW TV box, iPhone, iPad, Android phone or Android tablet.
Click here for all the details you need at www.skysports.com/boxofficelive
COST
The event is priced at £16.95 for UK customers and €21.95 for Republic of Ireland customers. However, TalkTalk TV customers can watch the fight for £14.95 on channel 416.
BOOKING
Remote
Sky+
Go to Channel 491 and press the green button. Press box office, select sports and events. Use the arrow buttons to highlight the event. Press select and the buy screen will be displayed. Press select to confirm your order. Enter your pin if prompted. You can only record the event by using this method.
Sky Q
Select 'Sport' on your menu and then select 'Box Office' within the sport menu at the bottom of 5/6 options.
Online
To book go to my.sky.com/orderboxoffice/There is no surcharge for online bookings.
To watch online if you are not a Sky TV customer, head to www.skysports.com/boxofficelive
Phoneline
To order the event call 03442 410888 (0818 220 225 from ROI)
Cable customers
Please contact your operator.Sky Box Office terms and conditions apply.