Muscle Mountain out of Monday's sprint at Ashburton

Multiple Group 1 winner Muscle Mountain has been scratched from the What The Hill Ashburton Trotters' Sprint on Monday.

The Greg and Nina Hope-trained trotter was vying for his fourth win in a row in the race.

But this morning a problem was detected in one of his legs and while it's believed a scan do not show any significant injury he was subsequently scratched from Monday's Group 3.

It was to be a key lead up race to the Renwick Farms Dominion Trot for Muscle Mountain, who resumed this campaign with a second behind rising star Bet N Win in the Group 3 Dancinginthedark M (USA) Canterbury Park Cup at Addington on October 11.

In Muscle Mountain's absence Bet N Win's now come into a $1.50 favourite with Oscar Bonavena at $3.90.