Roby has been sidelined since round one against Huddersfield. Burns has been picked after missing hte first two rounds of Super League.
Dominique Peyroux returns while Marck Percival is out with injury.
Keiron Cunningham will select his 17 from:
2. Tommy Makinson, 3. Jordan Turner, 5. Adam Swift, 6. Travis Burns, 7. Luke Walsh, 8. Alex Walmsley, 10. Kyle Amor, 11. Atelea Vea, 12. Jon Wilkin, 13. Louie McCarthy-Scarsbrook, 14. Lama Tasi, 15. Greg Richards, 16. Andre Savelio, 17. Luke Thompson, 18. Dominique Peyroux, 19. Theo Fages, 20. Joe Greenwood, 22. Jack Owens, 28. Morgan Knowles.
Trent Robinson will choose his Roosters’ side from:
Aidan Guerra, Blake Ferguson, Brendan Elliot, Dale Copley, Daniel Tupou, Dylan Napa, Ian Henderson, Isaac Liu, Jackson Hastings, Jake Friend, Jayden Nikorima, Joe Burgess, Kane Evans, Latrell Mitchell, Mitchell Aubusson, Mitchell Frei, Sam Moa, Shaun Kenny-Dowall, Siua Taukeiaho, Tyler Cornish, Vincent Leuluai.