Sunday, May 20
Hull KR (9) v Castleford (11)
Hull KR coach Craig Sandercock is set to stick with the team that lost to Wigan last time out, with prop Ryan O'Hara making his home debut and Liam Salter set to continue at centre in the absence of Jake Webster, the club's only lingering injury absentee.
Castleford are without both regular half-backs Rangi Chase and Danny Orr through suspension and injury, while utility back Ryan McGoldrick is also banned which could pave the way for teenager Ryan Brierley to make his debut. Forward Steve Snitch is out with an ankle injury sustained in training but prop Paul Jackson is in line to make his first appearance of the season after recovering from a hand injury.
Last season: Hull KR 26 Castleford 24, Castleford 27 Hull KR 14.
Last six league matches: Hull KR W L L W W L Castleford L W W L L W.
Top tryscorers: Kris Welham (Hull KR) 11; Josh Griffin (Castleford) 9.
Top goalscorers: Michael Dobson (Hull KR) 41; Kirk Dixon (Castleford) 27.
London Broncos (13) v Hull (5)
London are without second rower Matt Cook, who picked up a knee injury in the cup defeat at Huddersfield and joins long-term casualties Liam Colbon, Jason Golden and Julien Rinaldi on the sidelines.
Hull have loose forward Joe Westerman back from a dislocated shoulder sustained in the home win over London in February, while stand-off Richard Horne returns from a month's absence with a groin injury but they are without prop Mark O'Meley as well as centre Kirk Yeaman.
Last season: Hull 38 London Broncos 6, London Broncos 30 Hull 40.
Last six league matches: London Broncos L W L L L L Hull W W W L L W.
Top tryscorers: Michael Robertson (London Broncos) 8; Tom Briscoe and Danny Tickle (Hull) 8.
Top goalscorers: Michael Witt (London Broncos) 33; Danny Tickle (Hull) 53.
Wakefield (12) v Warrington (3)
Wakefield are without prop Matt James because of suspension but they are boosted by the return from injury of second row pair Ali Lauitiiti and Steve Southern, who have been out since Good Friday, and front rower Paul Johnson. Hooker Andy Ellis drops out after joining Featherstone on loan.
Warrington are still without skipper Adrian Morley but utility back Stefan Ratchford is poised to make his comeback from a two-month lay-off with a shoulder injury. Winger Joel Monaghan and centre Chris Bridge are left out and replaced by Matty Blythe and Rhys Williams.
Last season: Warrington 66 Wakefield 12, Wakefield 6 Warrington 22.
Last six league matches: Wakefield W L L L W L Warrington W L W L W W.
Top tryscorers: Ben Cockayne and Peter Fox (Wakefield) 7 Ryan Atkins (Warrington) 11.
Top goalscorers: Isaac John (Wakefield) 19; Brett Hodgson (Warrington) 30.
Widnes (14) v Catalan Dragons (4)
Widnes have goalkicking winger Patrick Ah Van back after missing the defeat at Castleford with a leg strain but second rower Simon Finnigan is out with a broken leg sustained in that match. Anthony Mullally is back in contention after being dropped following his decision to reject the offer of a new contract.
Catalan centre Mathias Pala is poised to make his first appearance of the season in place of Daryl Millard, who loses his ever-present record, while half-back William Barthau is also named in coach Trent Robinson's initial squad.
Last season: No corresponding fixture.
Last six league matches: Widnes W L L L L L Catalan Dragons L W W W L W.
Top tryscorers: Paddy Flynn (Widnes) 7; Vincent Duport (Catalan Dragons) 9.
Top goalscorers: Patrick Ah Van (Widnes) 8; Scott Dureau (Catalan Dragons) 51.