James Laithwaite goes straight into the Hull KR squad for Sunday's Stobart Super League fixture against Salford City Reds at Craven Park.
Back rower Laithwaite has joined the club on a month's loan from Warrington to help cover for injuries.
Rovers' squad depth will be tested as Kris Welham, Rhys Lovegrove, Ben Galea and Jordan Cox are all sidelined.
"He's a kid I've had my eye on for a while and has been playing really well in the Championship for Leigh," Hull KR coach Craig Sandercock told his team's official website.
"He looks like a Super League player playing at that level and is someone who will hopefully make a positive contribution to our team."
Smith departure
Salford are adjusting to life without England international half-back Matty Smith, who has joined Super League leaders Wigan.
Smith's final appearance for the City Reds turned out to be his man-of-the-match effort in last Friday's 48-24 win over Warrington.
Both teams sit just outside the play-off spots, Hull KR in ninth and Salford 10th.
Hull KR squad: McDonnell, Hall, Laithwaite, Horne, Withers, O'Hara, Webster, Petersen, Taylor, Salter, Hodgson, Paea, Latus, Murrell, Dobson, Green, Mika, Clinton, Netherton
Salford squad: Broughton, Gleeson, Moon, Williams, Holdsworth, Sneyd, Gledhill, Howarth, Boyle, Anderson, Ashurst, Wild, Nero, Paleaaesina, James, Gibson, Jewitt, Adamson