Josh Stacey in for Nick today and begins by reflecting on the sad news that came through this morning regarding Grand National runner Celebre D'Allen who sadly passed away last night after taking a sudden downturn. James Given, BHA's Director of Equine Health and Welfare joins the show to reflect on events that took place with this horse from the moment he collapsed while James also explains the stringent measures that the BHA have in place before a horse can even line up. Timeform's Dan Barber looks at the figures of the race and assesses how it stacks up against previous renewals. David Power Jockey's Cup winner Harry Skelton pops in to discuss that 500k prize as well as the final couple of weeks of the trainers' title and what Dan has up his sleeve to curtail Willie Mullins's late bid. Christian Williams looks back on his winner on Saturday in Liverpool before this week's Weatherbys Bloodstock segment takes us to South Africa as we hear from Eugene Freeman of Boland Stud.

Charlotte Greenway in for Nick and joined by the Mirror's David Yates as they reflect on a fantastic Aintree Grand National Festival and the big race itself on which we hear from winning rider Patrick Mullins along with the owner Nick Rockett, Stewart Andrew. Both discuss the emotions of the day and the continuing celebrations whilst Jamie Osbourne is along to look back on the agonising defeat suffered by Heart of Honour in the UAE Derby before we cover the retirement announcements from the weekend with Hayley Turner's long time agent Guy Jewell and jockey Alan Johns who went out with a winner yesterday at Ffos Las.

It’s Grand National day and Nick’s out on track having a look at some of today’s runners and again Shark Hanlon joins the show, this time taking over with the interviewing duties as he introduces us to some of the team over to support Hewick in this afternoon’s big race. Anthony Honeball is out picking grass with Brookie and hopes he can run a big race in this afternoon’s Maghull Novices’ Chase while Dan Barber looks at the big one from his own perspective as well as sharing what Timeform make of the race.

Nick and Lydia return with their annual runner-by-runner guide to this year's Grand National

Back again on track for Day 2 of the Aintree Grand National Festival and Nick is joined today throughout by David Yates and by a host of guests including clerk of the course Jon Pullin who has an update on the ground and the watering they've done on overnight. Keiran Burke has Soul Icon in the Topham and discusses why they've decided to tackle the famous fences and Peter Scudamore joins mid dog walk to look back on his experiences in the saddle in the National and later the winners trained by himself and Lucinda Russell. Danny Mullins drops in after exercising Glengouly, who he rides in the Topham and explains the thinking behind choosing Meetingofthewaters in the Grand National over Minella Cocooner before finally Shark Hanlon provides a positive update on Hewick who was bouncing after his leg stretch out on track this morning.

Ahead of tomorrow's Dubai World Cup meeting JA McGrath and Liam Mullen have been out and about speaking with various connections including Christophe Lemaire on the strong Japanese challenge; Chantal Sutherland on a tough couple of years and returning to the top table; Nemone Routh ahead of Calandagan's run in the Sheema Classic; Danny Shum looks ahead to Romantic Warrior; and finally Niels Petersen shares his hopes for his Scandinavian raider.

The Nick Luck Daily Podcast comes to you Live from Aintree on Day 1 of the Grand National Festival and once again Nick is in amongst it with Jane Mangan as the horses are out stretching their legs. Mary Mangan has just watched Spillane’s Tower out on track and share her hopes for him in this afternoon’s Aintree Bowl before ITV’s Alice Plunkett drops in to chat about what makes this place so special. Whilst out picking grass, Paul Gilligan and Buddy One join the show and look at whether this admirable horse can go one better than he did in the Liverpool Hurdle last year. Rob Hogarth is out on track fulfilling ITV media commitments but has time to have a quick word on Ahoy Señor and he’s extremely bullish about his chances against Spillane’s Tower. Then Gavin Cromwell shares his hopes for his three in the National, all of which are very prominent in the market, before Patrick Mullins runs through some of Willie’s contenders this week including Lossiemouth today and Gaelic Warrior who he rides in the Bowl this afternoon.

Charlotte Greenway filling in for Nick and joined by Timeform's Dan Barber to look ahead to the action from Aintree, kicking off tomorrow. Dan and Charlotte take a deep dive into Friday's declarations and pick out a couple of eye catchers as well as those that have something to prove. Charlotte also gets the low down on Hewick from Shark Hanlon ahead of his National bid whilst Max McNeill discusses his exciting Aintree team, including his two in the big one. Ben Atkins joins for our weekly P2P segment ahead of tomorrow's Foxhunters at Aintree with reflection on yesterday's Hunter Chase sponsored by the podcast on which Olive Nicholls shares her delight after victory aboard Viroflay. Finally, off to Dubai where JA McGrath is in situ and has news of the Hong Kong runners as well as a catch up with James McDonald on his mounts.

Ahead of Aintree, Charlotte Greenway brings you a bonus episode as she catches up with trainer Nicky Henderson to run though some of his biggest chances over the three days in the Grade 1s and handicaps including: Constitution Hill, Jonbon, Lulamba, Jango Baie, Hyland, Chantry House, Excello, Fantastic Lady, Impose Toi & Jeriko du Reponet.

Nick is joined by Racing Post senior writer Lee Mottershead to discuss the latest from around the racing world. They begin with the latest Grand National news, with Johnny Burke discussing how he went from without a ride to being offered two in the space of an afternoon. Sean Bowen shares his excitement at picking up the ride on Three Card Brag, while this year's Clerk Jon Pullin gives us a going and watering update. William Haggas delights in another Australian Group One with Dubai Honour at Rosehill, while RSN's Michael Felgate discusses the bitter divisions within the ATC over the proposed sale of the historic track. Dual Grand National hero Tiger Roll's breeder Jerry O'Brien is a brilliant bloodstock guest this week, courtesy of Weatherbys.