St Helens sign full-back Ben Barba, but are "seeking further and final clarification" about whether he must serve a drugs ban.
Warrington Wolves and England full-back Stefan Ratchford signs a new deal with the Super League side until 2020.
Leigh Centurions winger Adam Higson is suspended by five games after his red card against Salford at the Magic Weekend.
Full-back Ashton Golding signs a new five-year contract with Super League club Leeds Rhinos.
Audio & Video
Meet 82-year-old Jimmy, who plays Masters Rugby League - which is all based on the colour of your shorts, according to age.
Luke Robinson and Kevin Brown have had repeated concussions, but both tell Radio 5 live the game is getting to grips with the issue.
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How to get into Rugby League
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What's on BBC Sport this week
This week's sport on the BBC includes coverage of the FA Cup final, Women's Super League 1 Spring Series and the Monaco Grand Prix.