Five take on Big Buck's Big Buck's will face five rivals as he bids for his 15th straight win in the Rewards4Racing Cleeve Hurdle at Cheltenham on Saturday. The Andy Stewart-owned legend has never looked back since unseating his jockey in the 2008 Hennessy, and has been victorious in the last three World Hurdles. He looked better than ever when winning the Long Walk Hurdle at Ascot last time out, and while it was not the original intention to run here, trainer Paul Nicholls feels Big Buck's would benefit from an extra outing. Willie Mullins' Mourad could give him the most to do. Just four lengths behind Big Buck's last March, the seven-year-old ran out of his skin when second to Quevega at Punchestown in May. He has chased home another smart Irish mare, Voler La Vedette, on his last two runs. The David Pipe-trainer Dynaste paid the price for trying to stretch Big Buck's at Ascot and faded into fourth. He can expect to be ridden with a bit more restraint this time. Restless Harry bolted up at Wetherby first time out but is back over timber after failing to win in two outings over fences. He finished third in the Long Walk, just behind Nicholls' Five Dream, who has twice picked up good place money behind Big Buck's this season and will be looking to do the same again. Donald McCain's Across The Bay completes the small field for the Grade Two.