O'Brien pair in line for Champagne The Aidan O'Brien-trained pair War Envoy and The Great War are the only Irish representatives still entered in the At The Races Champagne Stakes at Doncaster on Saturday. Both War Front colts have been seen running with plenty of credit in recent weeks and could head to Doncaster bidding to hand O'Brien a second success in the seven furlong Group Two event. Estidhkaar and Richard Pankhurst are two of the star names among 15 juveniles still in contention with Richard Hannon's Estidhkaar having not been seen since an ultra-impressive victory in the Superlative Stakes at Newmarket's July meeting. Hannon could also run Baitha Alga, but he has plenty to prove after finishing tailed off in last month's Gimcrack at York. Richard Pankhurst has not been seen since streaking clear in the Chesham Stakes at Royal Ascot for John Gosden and has been snapped up to run in the colours of Sheikh Hamdan bin Mohammed Al Maktoum. Other interesting contenders include Charlie Hills' once-raced Windsor maiden winner Aces, Roger Varian's runaway Denford Stud Stakes victor Belardo and the Barry Hills-trained Nafaqa.