Team news and statistics ahead of this weekend's action in the Betfred Super League as Wigan host Wakefield.
Friday, July 19
Hull KR (11) v Huddersfield (9)
Hull KR's former Huddersfield coach Tony Smith has versatile forward Danny Addy available after missing the last five matches with a hamstring problem. Addy is set to take over at hooker from Matt Parcell, who is out with concussion and a shoulder injury picked up in the win at Leeds.
Huddersfield have hooker Adam O'Brien back from a head injury and coach Simon Woolford will turn to Adam Walne or Matty English to plug the gap created by the loss of prop Paul Clough with a broken hand sustained in the defeat by Catalans Dragons.
Last season: Hull KR 37 Huddersfield 10, Huddersfield 6 Hull KR 38.
Last six league matches: Hull KR L W L W L W Huddersfield L L L L W L.
Top tryscorers: Craig Hall (Hull KR) 9; Jermaine McGillvary (Huddersfield) 14.
Top goalscorers: Ryan Shaw (Hull KR) 42; Oliver Russell (Huddersfield) 36.
Sunday, July 21
Castleford (6) v Warrington (2)
Castleford coach Daryl Powell sticks with the team that beat Wakefield as they seek to avenge two defeats by the Wolves already this year.
Warrington have front rowers Chris Hill and Mike Cooper back from suspension and injury respectively and coach Steve Price has recalled Harvey Livett and Luis Johnson from their loan spell at Hull KR. Luther Burrell could make his second appearance but Sitaleki Akauola misses out with a two-match ban picked up in last week's defeat by Salford.
Last season: Warrington 30 Castleford 34, Castleford 6 Warrington 18.
Last six league matches: Castleford W L L W L W Warrington W L W L W L.
Top try scorers: Greg Eden (Castleford) 13; Blake Austin (Warrington) 18.
Top goal scorers: Peter Mata'utia (Castleford) 42; Stefan Ratchford (Warrington) 75.
Leeds (10) v Hull (3)
Leeds have props Brad Singleton and Nathaniel Peteru back from suspension and injury respectively - the former for his 200th career appearance - and coach Richard Agar brings in half-back Callum McLelland after losing Richie Myler to suspension.
Hull are still without stand-off Albert Kelly but hope to have forward Gareth Ellis back to face his old club after missing the win over London with an eye injury. Coach Lee Radford has also added second rower Jordan Lane to his squad after his recovery from a knee injury.
Last season: Hull 19 Leeds 18, Leeds 20 Hull 16.
Last six league matches: Leeds W L L W W L Hull W W W L L W.
Top try scorers: Ash Handley (Leeds) 14; Josh Griffin & Albert Kelly (Hull) 12.
Top goal scorers: Liam Sutcliffe (Leeds) 41; Marc Sneyd (Hull) 90.
London Broncos (12) v St Helens (1)
London coach Danny Ward is set to stick with the team that lost to Hull, although half-back Jordan Abdull could start after being on the bench last week and prop Olsi Krasniqi has been added to his squad.
St Helens coach Justin Holbrook rests Lachlan Coote, Jonny Lomax, Tommy Makinson, Kevin Naiqama, Mark Percival, Theo Fages, Alex Walmlsey, James Roby and Luke Thompson ahead of next week's Challenge Cup semi-final. He has recalled fringe players Danny Richardson, Jack Welsby and Adam Swift and is set to give debuts to Josh Eaves, Callum Hazzard, Josh Simm and Lewis Dodd.
Last season: No corresponding fixture.
Last six league matches: London Broncos W W W L L L St Helens L W W W W W.
Top try scorers: Rhys Williams (London Broncos) 12; Tommy Makinson (St Helens) 17.
Top goal scorers: Kieran Dixon (London Broncos) 54; Lachlan Coote (St Helens) 87.
Salford (7) v Catalans Dragons (4)
Salford recall winger Derrell Olpherts, with Krisnan Inu set to switch to centre in the absence of the departed Junior Sa'u, while forwards Lee Mossop and Josh Jones are back in the pack and Josh Johnson makes his home debut.
Catalans have winger Fouad Yaha and second rower Benjamin Jullien back from injury, taking over from Jodie Broughton and Kenny Edwards, who is suspended, while scrum-half Matty Smith is recall in place of Samisoni Langi.
Last season: Catalans Dragons 44 Salford 10, Salford 12 Catalans Dragons 26, Salford 32 Catalans Dragons 16.
Last six league matches: Salford L W W L L W Catalans Dragons L L L L W W.
Top try scorers: Niall Evalds (Salford) 17; Fouad Yaha (Catalans Dragons) 12.
Top goal scorers: Krisnan Inu (Salford) 50; Sam Tomkins (Catalans Dragons) 60.