Hooker Paul Aiton's late try, his first for Leeds, sunk Super League neighbours Huddersfield 28-24 at Headingley.
Former Super League winner Ian Millward previews the rest of this weekend's games including Widnes v Wakefield.
Former England forward Gareth Hock is to kick start his career with Leigh in the Kingstone Press Championship.
Half-back Jarrod Sammut will make his debut for London Broncos at Leigh Centurions on Sunday.
Wigan's Rhodri Lloyd has joined League One club Swinton on a month's loan.
Team news for Friday's Super League clash between St Helens and Castleford Tigers at Langtree Park.
Mike McMeeken and Matt Cook are set to make their debuts for Castleford in Friday's Super League game against St Helens.
Featherstone have been given the go-ahead to play a first home game at their new-look Big Fella's Stadium.
Widnes have produced a Magic Weekend shirt with the support of Peter Beardsley to raise funds for charity.
Whitehaven have appointed 29-year-old half-back James Coyle as their head coach.