text: Get ready for the Grand National, the highlight of the racing year, with our must-watch preview from the paddock at Aintree. Sportsmail's Racing Correspondent Marcus Townend and Britain's No 1 tipster Sam Turner cast their eye over the 39-strong field for the race and offer their predictions. Will AP McCoy's glittering career conclude with a fairytale victory for favourite Shutthefrontdoor, a result that would cause 70,000 spectators to raise the roof and wipe out the bookies? Or will one of the other contenders take their place in history? Find out by clicking play on the video below. Sorry we are not currently accepting comments on this article.
target: Daily Mail racing correspondent Marcus Townend and tipster Sam Turner cast their eye over the field for the Grand National in our preview video .
  Shutthefrontdoor and AP McCoy will start the race as favourite .