Landseer bids for O`Brien victory Landseer will bid to give Aidan O`Brien a second successive victory in the #400,000 Tattersalls Houghton Sales Stakes at Newmarket tomorrow, for which 16 two-year-olds have been declared to run.The master of Ballydoyle won the valuable seven-furlong contest 12 months ago with Mozart - and Landseer is strongly fancied to lift the #200,000 first prize after beating Firebreak by a neck in the Coventry Stakes at Royal Ascot on his last outing.Main dangers to Landseer could come from the David Loder-trained duo Indian Dreamer, the mount of Frankie Dettori, and the Kieren Fallon-ridden Desert Warning.Other interesting contenders are the Mark Johnston-trained Sir George Turner, Mick Channon`s Anna Walhaan and Dupont, who will be out to put a disappointing run in France behind him for local handler William Haggas.