An awkward bump on the leg in a collision during the second half of Thursday night's Broncos clash with the Panthers will see James Roberts out of the running for a Blues jersey.
According to foxsports.com.au, the bolter had scans this afternoon and is set to miss a month of footy after suffering ligament damage.
It was a case of friendly fire, with contact with Matt Gillett at the core of the injury. Check out the video below.
There's been a lot of talk surrounding Roberts' selection for the NSW side this Origin series after his barnstorming opening to this season.