Another Brisbane assault is in the pipeline for Rockhampton trainer Nick Walsh if talented mare Queen Assassin continues her form at Mackay on Friday.

Another Brisbane assault is in the pipeline for Rockhampton trainer Nick Walsh if talented mare Queen Assassin continues her form at Mackay on Friday.

Trainer Gary Doughty is hopeful former Sydneysider Ghost Hunter can bring his Gold Coast Polytrack form to town when the gelding chases a hat-trick of wins at Eagle Farm on Wednesday.