Matty Smith is set to make his Warrington debut against his former club St Helens after joining the Wolves on loan from Catalans Dragons.
Wigan Warriors have extended Tommy Leuluai's deal and confirmed Sean O'Loughlin does not need surgery on a pectoral injury.
Salford Red Devils cruised against London Broncos, while Hull KR beat Castleford Tigers in dramatic circumstances.
Catalans Dragons' victory over Warrington Wolves was overshadowed by events that are now the subject of a Super League and RFL probe.
Two players were sent off and another sin-binned as Catalans Dragons' victory over Warrington Wolves was overshadowed by fighting.
Huddersfield Giants were torn apart by struggling Leeds Rhinos at their own ground in Super League on Friday.
Wigan Warriors earned a 15-14 victory over Hull FC in a thrilling Super League clash thanks to a 40-metre drop goal from Zak Hardaker.
After 18 seasons with Warrington Wolves, 38-year-old second-row forward Ben Westwood will make the 2019 campaign his last.
Justin Holbrook has led a revival at St Helens and will be charged with delivering fresh impetus when he arrives at the Gold Coast Titans.
Wigan Warriors have pulled off a major coup by signing George Burgess to a three-year contract from the 2020 season.