Leeds Rhinos bid to extend their lead at the top of the table when they travel to Huddersfield. The Rhinos have not won on any of their last four Super League visits to the John Smith's Stadium. Widnes Vikings will be looking to complete a Super League double over their local rivals Warrington Wolves. The Vikings won when the two teams met at Easter. Wigan hope to maintain their 100% home record when they take on Hull KR, St Helens play Wakefield, Hull FC face Salford and Castleford are at home to Catalans Dragons.