Rugby League: Challenge Cup

Clare Balding hosts coverage as Challenge Cup holders Warrington take on Catalans Dragons in an intriguing semi-final at the Stobart Stadium in Widnes. Warrington have been in prolific try-scoring form this season and look well set to retain the trophy they won when they beat Huddersfield at Wembley last year. They go into the match as huge favourites given the Dragons' woeful form in the Super League this season. But the French side confounded expectations by reaching the final in 2007 and will be looking to upset the form book once again.