St Helens fight back to beat rivals Wigan Warriors thanks to a dramatic late Mark Percival try.
Former Great Britain and England half-back Leon Pryce retires, aged 35, having won four Super Leagues in his career.
Wakefield Trinity sign prop Adam Walker from Super League rivals St Helens on a two-and-a-half-year deal.
St Helens sign full-back Ben Barba, but are "seeking further and final clarification" about whether he must serve a drugs ban.
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Watch a selection of great tries from Super League leaders Castleford Tigers, who host St Helens in the sixth round of the Challenge Cup on Saturday.
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