Danny O’Brien has confirmed he and fellow trainer Mark Kavanagh will seek damages from the vet involved in the long-running cobalt saga.

O’Brien and Kavanagh were on Tuesday fined $8000 and $4000 respectively for presenting horses to race with elevated cobalt levels in their systems but cleared of administration.

O’Brien told RSN927 they had started legal proceedings against Flemington Equine Centre vet Tom Brennan who admitted giving the horses a substance called vitamin complex but denied knowing it contained high levels of cobalt.

Credit: AAP