Hull KR have been forced into two changes to their 21-man squad to face Bradford Bulls, with Arthur Mourgue and Sauaso Sue dropping out due to injury.
Full-back Mourgue, 27, is set for another lengthy spell on the sidelines due to a broken thumb suffered in the derby win over Hull FC.
The France international is now awaiting results of a second scan to determine if surgery is needed or not, with head coach Willie Peters suggesting the injury is around five to six weeks and not season ending.
Influential prop Sue, 34, will miss this week due to a knock, having played just the one stint in the recent 34-20 victory at the MKM Stadium.
Noah Booth and Frankie Dearlove have both been named in the extended squad, while Mikey Lewis continues to miss out due to suspension. Dean Hadley has been named, currently battling a slight hamstring issue.
The Robins head into Round 21 in sixth position, on joint-points with St Helens just below.
Kurt Haggerty’s Bradford Bulls, meanwhile, sit 12th with six wins from 20 in their first season back in Super League. Thomas Doyle joins on a short-term loan from Wakefield Trinity, while Jack Ormondroyd and Jayden Nikorima drop out due to injury.
Hull KR 21-man squad : Tom Davies, Peta Hiku, Oliver Gildart, Joe Burgess, Tyrone May, Jez Litten, Tom Amone, Dean Hadley, James Batchelor, Elliot Minchella, Jack Broadbent, Sam Luckley, Jai Whitbread, Rhyse Martin, Karl Lawton, Jordan Dezaria, Noah Booth, Bill Leyland, Jack Charles, Frankie Dearlove, Ryan Hampshire.
Bradford Bulls 21-man squad: Andy Ackers, Caleb Aekins, Guy Armitage, Chris Atkin, Riley Dean, Thomas Doyle, Zac Fulton, Will Gardiner, Jamie Gill, Luke Hooley, Alfie Leake, Loghan Lewis, Joe Mellor, Eliot Peposhi, Ethan Ryan, Ebon Scurr, Phoenix Steinwede, Ryan Sutton, Harvey Ward, Connor Wynne.