Number seven Matt Frawley has been ruled out of the Betfred Challenge Cup fourth round after suffering concussion against Catalans Dragons last Saturday, but full-back Lachie Miller could be available for the first time this season. If Miller starts, coach Brad Arthur will have to decide whether to play Jake Connor alongside stand-off Brodie Croft or use Jack Sinfield - a natural scrum-half - in that role.
With Miller having not played since last September, the coach also wants a back-up plan in case he can’t get through 80 punishing minutes. Alfie Edgell, a specialist full-back, is in Leeds’ initial 21-man squad, but if Sinfield is on the bench he could come into the halves with Connor reverting to full-back. Here’s how Rhinos might line up.

13. Second-row: James McDonnell
Showed a new side to his game with a couple of impressive kicks against Catalans last week. Photo: John Clifton/SWpix.com

14. Loose-forward: Morgan Gannon
Has been good, in several roles, since returning from a year-long concussion layoff. Photo: Steve Riding

15. Sub: Jarrod O'Connor
Will get good game time, provides cover for both hooker and the back-row. Photo: Tony Johnson

16. Sub: Sam Lisone
Hasn’t had a lot of time on the field in recent games, but will retain his spot. Photo: Tony Johnson

17. Sub: Cooper Jenkins
Likely to continue among the replacements for his fourth Rhinos appearance. Photo: Tony Johnson

18. Sub: Jack Sinfield
If Miller doesn't make it, Sinfield will probably start at scrum-half; if not, his most likely role is on the bench. Photo: Steve Riding