Harry Redknapp's first Grand National runner will only get the green light for Aintree if conditions are suitable.
Trainer of Back On The Lash, Martin Keighley, is keeping a close eye on the weather as Saturday's big race looms. A deluge of rain would seriously hamper the chance of the nine-year-old, who snuck into the race at Monday's confirmation stage, making the line-up.
A total of 10mm of rain hit the track on Monday – and up to the same amount is due overnight on Tuesday.