O'Brien trio set for Debutante test Aidan O'Brien saddles three in an attempt to win the Breast Cancer Research Debutante Stakes at the Curragh for the 10th time. His first success in the Group Two came way back in 1994 when Christy Roche partnered Glounthaune Garden to victory, with the likes of Rumplestiltskin, Lillie Langtry and Tapestry subsequently joining the roll of honour. One of O'Brien's runners, Minding, is a daughter of Lillie Langtry and she has made quite an impact in two starts to date. She was beaten on her debut by Dermot Weld's Tanaza, who is favourite across the boards for the 1000 Guineas after impressing in the Silver Flash Stakes, before winning a Leopardstown maiden by five and a half lengths "Minding had a little break after that and is just ready to run," said O'Brien. "She's a nice filly and probably will come forward for the run." Ballydoyle made a pleasing debut when not as ked many serious questions in May before claiming second place in the Chesham at Royal Ascot. Another daughter of Galileo, she made no mistake last time out in a Newmarket maiden but this will be a tougher test. "We were delighted with Ballydoyle at Newmarket and she seems to come out of that well," said O'Brien. The third runner for the stable is Alice Springs, a debut winner but no match for Tanaza in the Silver Flash last time. Jim Bolger saddles two, the Kevin Manning-ridden Turret Rocks, third in the Silver Flash after making a winning debut, and debut winner Leafy Shade with Ronan Whelan aboard. David Wachman's Most Beautiful has progressed with each run, winning a Group Three at the Curragh last time out. Joe Murphy's Only Mine, second to Most Beautiful at the Curragh before winning a maiden, and Eddie Lynam's Miss Elizabeth complete the field.