Watch: Challenge Cup third round - St Helens v Leeds Rhinos & Catalans Dragons v Wakefield Trinity

Video caption: Challenge Cup final highlights: Late Luke Gale drop goal helps Leeds beat SalfordChallenge Cup final highlights: Late Luke Gale drop goal helps Leeds beat Salford. The Challenge Cup is a knockout rugby league cup competition held annually since 1896, with the exception of 1915–1919 and 1939–1940. It involves...