The Gai Waterhouse and Adrian Bott-trained The Bull has been banned from racing in Australia after suffering a second bleeding attack.

The Bull's failure at Randwick as favourite has been explained by his second bleeding attack which means he incurs a lifetime ban from racing in Australia.

The Gai Waterhouse and Adrian Bott-trained four-year-old led before weakening to finish 18 lengths last in a 1400m-race on Saturday.

Bott told stewards The Bull was found to have bled from both nostrils after he returned to the stables on Saturday evening.

His previous bleed came in a barrier trial in April last year.