O'Brien stablemates to renew rivalry in Leopardstown Grade 2 Stablemates Cerberus and A Wave Of The Sea will run next in the Grade 2 Knight Frank Juvenile Hurdle at Leopardstown on St Stephen's Day as the Joseph O'Brien trained pair are set to renew rivalries once again. A Wave Of The Sea beat Cerberus to win a maiden hurdle in November before Cerberus exacted his revenge in a Grade 3 contest on BarOne Racing day at Fairyhouse on Sunday. Trainer O'Brien stated “neither Cerberus and A Wave Of The Sea have done anything wrong this season and it would make sense to go for the Grade 2 juvenile hurdle at Christmas next. “A Wave Of The Sea is a galloper and Fairyhouse would be a quicker track than Leopardstown and Leopardstown will be more to his liking. They are two good three year olds and I'm looking forward to them for the rest of the year.”