Team news and statistics ahead of this weekend's action in the Betfred Super League.
Wakefield (8) v Huddersfield (9)
Centre Bill Tupou returns for Wakefield having been out since March with a groin injury. Tyler Randell is also available again after missing the loss to Warrington with concussion.
Giants captain Leroy Cudjoe is set to make his first appearance of the season after overcoming a long-term knee injury. Jermaine McGillvary and Michael Lawrence also return to the squad.
Last season: Huddersfield 40 Wakefield 28, Wakefield 22 Huddersfield 25, Wakefield 22 Huddersfield 4
Last six league matches: Wakefield WLLLLL; Huddersfield LWWLLL
Top tryscorers: David Fifita (Wakefield) 8; Jermaine McGillvary (Huddersfield) 14
Top goalscorers: Danny Brough (Wakefield) 49; Oliver Russell (Huddersfield) 36
Warrington (2) v St Helens (1)
Former England rugby union centre Luther Burrell could make his Warrington debut while winger Tom Lineham returns from suspension. Ben Murdoch-Masila and Ryan Atkins have been left out of the squad by coach Steve Price.
Saints are without forward Zeb Taia, who has been ruled out for six weeks with a dislocated shoulder. Joseph Paulo is set to take his place while centre Mark Percival has overcome a hamstring problem. Hooker James Roby is still two to three weeks away from a return following groin surgery.
Last season: St Helens 14 Warrington 12, Warrington 12 St Helens 30
Last six league matches: Warrington WLWWLW; St Helens WWWLWW
Top tryscorers: Blake Austin (Warrington) 18; Tommy Makinson (St Helens) 15
Top goalscorers: Stefan Ratchford (Warrington) 75; Lachlan Coote (St Helens) 70
Wigan (6) v Salford (5)
Wigan are without centre Dan Sarginson (shoulder) and forward Ben Flower (back) for a second week in succession. Dom Manfredi (knee) and Tom Davies (ankle) are long-term absentees.
Tonga international Tui Lolohea could make his Salford debut after joining the club from Leeds this week. Forward Adam Walker is suspended and Lee Mossop drops out with Ben Nakubuwai and Ken Sio coming into the squad.
Last season: Wigan 30 Salford 0, Salford 12 Wigan 40
Last six league matches: Wigan WLLWWW; Salford WLLLWW
Top tryscorers: Joe Burgess (Wigan) 12; Niall Evalds (Salford) 17
Top goalscorers: Zak Hardaker (Wigan) 45; Krisnan Inu (Salford) 44
Castleford (7) v London Broncos (11)
Castleford prop Junior Moors faces a lengthy lay-off after fracturing his hip in last week's loss to Salford. Greg Eden (calf) has been ruled out, with Will Maher and Tuoyo Egodo coming in.
London coach Danny Ward makes one change from last week's win over Hull KR, with Will Lovell replacing Nathan Mason. Hooker Eloi Pelissier (broken arm) is the only major absentee as the Broncos aim for their fourth successive Super League victory.
Last season: No corresponding fixture
Last six league matches: Castleford LWLWLL; London Broncos LWLWWW
Top tryscorers: Greg Eden (Castleford) 13; Rhys Williams (London Broncos) 11
Top goalscorers: Peter Mata'utia (Castleford) 38; Kieran Dixon (London Broncos) 49
Leeds (12) v Catalans Dragons (4)
Stand-off Robert Lui and hooker Shaun Lunt are expected to go straight into the Leeds side after joining the club from Salford and Hull KR respectively this week. Trent Merrin takes over as captain following Kallum Watkins' move to Gold Coast Titans.
Lucas Albert and Arthur Romano return for an injury-hit Catalans Dragons, who have Micky McIlorum, Greg Bird, Tony Gigot, Matt Whitley, Jason Baitieri, Kenny Edwards and Lewis Tierney missing for the trip to Headingley.
Last season: Leeds 25 Catalans Dragons 28, Catalans Dragons 33 Leeds 20
Last six league matches: Leeds LLWWLL; Catalans Dragons WWWLLL
Top tryscorers: Ash Handley (Leeds) 14; Fouad Yaha (Catalans Dragons) 12
Top goalscorers: Liam Sutcliffe (Leeds) 33; Sam Tomkins (Catalans Dragons) 48