Record number of grey horses in the Grand National as terrified bookies brace for millions to back them

A RECORD seven grey horses will run in this year’s Grand National.

The biggest race of the year gets underway at Aintree at 4pm.

AlamySeven grey horses will run in the Grand National[/caption] PAIntense Ruffles is amongst the favourites to win the biggest race of the year[/caption]

It is expected to be a huge day for the bookies – made even bigger by the number of grey horses taking part.

Grey steeds are often popular amongst the public and this could be the year punters get a winner.