Weld Out To Rule Over O´Brien Unwritten Rule will attempt to fight off the Aidan O´Brien hordes for the second time in a fortnight when he takes his chance in the P.W.McGrath Memorial Ballysax Stakes at Leopardstown tomorrow. Dermot Weld´s Irish Derby entry trumped O´Brien´s pair of Washington Irving and Hindu Kush over the same 10-furlong trip earlier in the month. He faces three more from Ballydoyle in this weekend´s Group Three heat as Alessandro Volta, Hebridean and King Of Rome have all been declared. Stan Cosgrove of Moyglare Stud Farm, who own Unwritten Rule, said: "Aidan has three in it and it will be a very interesting race. "I think he´ll run another very good race and we´ll be happy if he´s in the first three. "We were pleased with him the last day and he´s a good horse, but Aidan will have a line on us on that running." The seven-runner field is completed by Dirar, Moiqen and the Jim Bolger-trained Solas Na Greine. (C) PA Sport