Sydney Roosters coach Trent Robinson's blasted what he's calling incompetent refereeing in his side's 31-18 loss to the Eels

In what was the final play before halftime, Chooks half Drew Hutchinson copped knees in the back from Parramatta opposite Dylan Brown as he dived for a try.

Hutchison was reportedly given oxygen before he was wheeled into an ambulance with suspected broken ribs and a punctured lung.

Brown wasn't placed on report for a further 20 minutes.

Robinson says it's not good enough.