Lump on Coal at Clonmel Ann and Alan Potts have Buckers Bridge in the line-up for Saturday's Crabbie's Grand National and they have four chances of a warm-up winner at Clonmel today. Sizing Coal and Equity Swap represent the Potts family in the opening Ardfinnan Maiden Hurdle, with the Jim Dreaper-trained Sizing Coal looking to improve on his recent second over course and distance. Useful Flat handicapper Equity Swap needs to show more now on start number two over flights for Willie Mullins and Paul Townend. The usual trainer and jockey team of Henry De Bromhead and Andrew Lynch are also on duty for the Potts family, with Aupcharlie coming into the Suir Valley Chase on the back of two falls. However, hailing from these quarters jumping is usually a strongpoint and on his second outing for the Waterford handler, the still promising eight-year-old will be fancied by many to land the prize. The other one sporting the famous green, yellow and red on the day, Juan De Gracia, has as good a chance as any, being rated 114 in a modest-looking Slievenamon Beginners Chase. Elsewhere on the seven-race programme, Desertmore Stream can only ever really be a tentative pick until he gets his head in front but he has to be there or thereabouts at the conclusion of the Go Racing In The South East '5 for 50 Euros' Maiden Hurdle. The following race is similarly titled but this one is a handicap and it might be best left to course and distance scorer Tooreen from the in-form Robert Tyner yard. In the 6.55, the same promotion is featured in the race name and this handicap chase could go the way of Pipe Down - trying his luck for the first time in this sphere having displayed ability on more than one occasion in the past. The finale, the Comeragh Mares Flat Race, may fall to the classy looking point-to-point graduate Autumn Shades.