Tiger Roll wins back-to-back Grand Nationals - first horse to do so since legendary Red Rum in 1974
Davy Russell rides 4-1 favourite to victory once again at Aintree
Tiger Roll won by three lengths from Magic of Light and Rathvinden, with Walk in the Mill fourth
Trainer Gordon Elliott had record 11 runners including Tiger Roll
Up for Review suffered fatal injuries - first National horse to die since 2012
Maghull Novices Chase
Us And Them is looking a picture in the paddock and is going to go off as favourite.
The Joseph O'Brien-trained six-year-old has only one win from six outings over fences but has been second four times behind some quality opposition.
Could this be where his luck changes?
#bbcracing and 81111 on text
Image source, Getty ImagesNever mind studying the bloodlines, bidding at livestock auctions, hemorrhaging thousands of pounds to keep your purchase in oats and bedding, we are offering you the most fun aspect of racehorse ownership for free.
What would you call your racehorse?
Liverpool likely lads Robbie Fowler and Steve McManaman famously named two they had bought 'Some Horse' and 'Another Horse'.
Let us know.
Andrew Thornton
Jockey on BBC Radio 5 live
I can feel the build-up now. It's just a fantastic feeling that everyone wants experience.
Frank Keogh
BBC Sport at Aintree
Flowers and polo mints laid at the grave of legendary triple Grand National winner Red Rum. 'Rummy' - who galloped in training in Southport beach - died aged 30 in 1995 and is buried by the winning post at Aintree
Image source, BBC SportGuardian lead tipster Chris Cook
The Guardian
Image source, Getty"Ruby Walsh, the successful rider in two Grand Nationals, has somehow managed to go 14 years without winning another one but he can enjoy a late-career highlight by landing today’s big race aboard Rathvinden.
"Trained by Willie Mullins, Rathvinden looked all over a National contender when cruising through the four-miler at last year’s Cheltenham Festival. It was particularly impressive that he responded so gamely when challenged by a talented rival close home. His prep run could not have gone better at Fairyhouse in February, in a race Mullins used to prepare his previous National winner, Hedgehunter."
Cheltenham Grade 1-winning jockey Byrony Frost is at Aintree but is not racing during the meet due to a shoulder injury.
On the big race at 17:15 BST speaking to 5 Live, Frost said: "I'm in two hearts and one will be crying loudly at 5.15 but at the same time it's the buzz of being here.
"Every horse that lines up on that start line has an equal chance because of the race's unpredictability."
Image source, BBC SportThe celebrity fans have started arriving at Aintree.
Former Manchester United, Aston Villa, Coventry and England striker Dion Dublin can spot value in a three-bed semi in Cannock. Can he sniff out the bargain price on the bookies' boards as well?
Image source, GettyHockey star Sam Quek won gold at Rio 2016, but will she know who is heading to the winners' enclosure today?
Image source, GettyFormer Everton striker Graeme Sharp is on the scene as well to represent the blue half of that great footballing city.
Image source, Getty ImagesMersey Novices' Hurdle
1 Reserve Tank (R M Power) 20-1
2 Brewin'upastorm (R Johnson) 10-3
Nine ran
Also: 11-4 Fav Angels Breath
Mersey Novices Hurdle
Robbie Power asked for a little more and Reserve Tank just kept giving. Brewin'upastorm in second.
Image source, ReutersMersey Novices Hurdle
Reserve Tank leads into the last...
Mersey Novices Hurdle
The Big Bite, Colonel Custard and Reserve Tank still out in the front with six to jump. The grandstands are already looking jam-packed.
Mersey Novices' Hurdle
Reserve Tank leads the way in the early stages ...Angels Breath is tucked in third with jockey Nico De Boinville keeping him reined in.
Mersey Novices' Hurdle
Image source, GettyNext up on the card is the Mersey Novices' Hurdle.
Angels Breath, trained by Nicky Henderson, won a Grade Two novice event at Ascot on his debut and, although he was below par at Cheltenham last month, looks likely to head off as a 3-1 favourite.
Brewin'upastorm, trained by Richard Johnson, is second favourite in the market as it stands.
13:45 - Gaskells Handicap Hurdle (Grade 3) - winner Aux Ptits Soins
14:25 - Betway Mersey Novices' Hurdle (Grade 1)
15:00 - Doom Bar Maghull Novices' Chase (Grade 1)
15:40 - Ryanair Stayers Hurdle (Registered As The Liverpool Hurdle) (Grade 1)
16:20 -Betway Handicap Chase (Grade 3)
17:15 - Randox Health Grand National Handicap Chase (Grade 3)
18:20 - Pinsent Masons Handicap Hurdle (Conditional Jockeys And Amateur Riders)
Cornelius Lysaght
BBC racing correspondent at Aintree
There is nothing else like the Grand National.'Everyone in the sport really feels today'
This is the single day of the year where everyone in the sport really feels it.
More than 600 million people around the world will be following this race.
We are here in Liverpool in the sunshine.
We are ready to go and maybe there will be history made this year with Tiger Roll.
2009 - Mon Mome
Image source, Getty ImagesThe 2009 victor Mon Mome became the first 100-1 chance to win the Grand National since Foinavon back in 1967 and the fifth in total.
Venetia Williams is the second female trainer to enjoy Grand National success, while Liam Treadwell has a dream first ride in the big race.
UK number one at the time: Flo Rida - Right Round
BBC Radio 5 Live
There was not a bit of gristle left on the Grand National bone once BBC Radio 5 live had had a gnaw on Thursday.
Eleanor Oldroyd was joined by Cornelius Lysaght, Katy Walsh, Lizzie Kelly and a host of others. John Hunt was also on explaining the controlled chaos of calling the big race.
Image source, GettyBarry Geraghty will miss his ride on Anibale Fly in today's big race after suffering a broken leg in a fall from Peregrine Run in the Topham Chase at Aintree on Friday.
"I have broken both my tibia and fibula just above my right ankle," he told the attheraces.com.
"It's a real sickener to miss tomorrow as the Grand National is the race I look forward to more than any other."
Mark Walsh steps in for the ride.
Image source, Getty ImagesBBC racing correspondent Cornelius Lysaght has picked out his ones to watch in the big race.
Twenty years ago he picked out Bobbyjo, Blue Charm, Call It A Day and Addington Boy for the 1999 race and they duly filled the first four places.
Presumably he didn't put much money behind his hunch or he would be watching today's action from a sunlounger in the Maldives.
Anyway, for today's running he has got this Tiger-free top four:
Lake View Lad
Rock The Kasbah
Minella Rocco
Noble Endeavor
Gaskells Handicap Hurdle (13:45 BST)
Image source, ReutersThe first winner of the day is heading into the winners' circle.
Aux Ptits Soins, trained by Dan Skelton and ridden by younger brother Harry, has brought home the Gaskells Handicap Hurdle.
The Skelton brothers are the offspring of London 2012 gold-winning show-jumper Nick by the way...
1 Aux Ptits Soins (Harry Skelton) 11-1
2 Tommy Rapper (Bridget Andrews) 20-1
3 Keeper Hill (R Johnson) 25-1
4 Burbank (J McGrath) 25-1
Image source, Reuters