Irish jockey Katie Walsh out of luck in Australian Grand National outing

Katie Walsh failed in her quest to emulate her brother Ruby as I'll'ava'alf was brought down in the Australian Grand National.

Ruby Walsh won the Ballarat feature aboard Bashboy in 2015 but Katie's attempt to land the extended two-mile-six-furlong event came to an end when her mount was brought down by Slowpoke Rodriguez at the last fence.