Clare Balding presents live coverage of the Challenge Cup final from Wembley Stadium, as defending champions Warrington face Leeds in one of the highlights of the sporting calendar. Warrington are eyeing more Wembley celebrations, having ended a 35-year trophy drought with victory over Huddersfield in last year's final. But Leeds showed just how good they are with a memorable 32-28 win over St Helens in their semi-final.