Toronto Wolfpack will become the first transatlantic sports team when they take on Siddal in the Challenge Cup on Saturday.
Zeb Taia joins on a three-year-deal from Gold Coast Titans while Joe Greenwood moves in the opposite direction.
Hull FC take up the option of a two-year extension on half-back Marc Sneyd's deal with the Super League club, to 2019.
Super League "deserves a pat on the back" after beating Australia's NRL in the World Club Series, says Wigan coach Shaun Wane.
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Salford's Josh Jones powers over to secure a 30-20 win for the Red Devils over Huddersfield Giants in the Super League.
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