Highlights from the latest round of matches as the first part of the 2017 Super League season reaches its conclusion. At the end of this round the top eight teams will battle for a place in the play-offs, while the remaining four teams will fight to avoid relegation to the Championship.The two best-supported teams in the competition, Wigan and Leeds, meet at the DW Stadium. The two sides met in the very first grand final in 1998, and their rivalry has been a key highlight of the last 20 Super League seasons. Leeds have been battling towards the top of the table for most of this year, but the champions Wigan have started to find their form and move closer to play-off places. This match against one of their oldest rivals will give plenty of indications as to whether Wigan can go on to defend their title this year.Castleford hope to move a step closer to claiming the League Leaders Shield when they travel to the south of France to take on Catalans. The Tigers have raced away at the top of the table and look set to finish in first place for the first time in 91 years. There's a local derby for Warrington, who meet Widnes. Leigh take on Salford, Wakefield are at home to St Helens, and Hull FC warm-up for their Challenge Cup semi-final when they take on Huddersfield.