BOSSIER CITY, La. - Trainer Steve Asmussen and jockey Roman Chapa have been virtually unstoppable at Louisiana Downs the last two seasons, teaming up to win 16 races from 38 starters, including races at the Fair Grounds meet at Louisiana Downs. On Sunday they again have the one to beat in the co-featured eighth race, a seven-furlong allowance on the dirt. Extreme Storm will square off against seven rivals who will be looking for their second career wins other than maiden or claiming.