The Grand National: Follow the action from Aintree in our live hub

It is the biggest horse race of the year.

This year, the number of horses running has reduced from 40 to 34, and the race gets underway at an earlier time of 4 pm, instead of 5:15 pm, the time it has run at in recent years.

Corach Rambler (5-1), trained by Lucinda Russell and jockeyed by Derek Fox, won the race last year and is the favourite for this year's running. 

I Am Maximus (7-1) is also in contender, as is Vanillier (9-1). (All odds are correct at the time of writing).

The race starts at 4 pm, with TV coverage on ITV1. You can follow the race in our live hub above. Just click on the key point you want to read about, or keep scrolling for updates.