North Sydney lower grader Mitchell Stevens will fight to clear his name of a biting charge at the NSWRL judiciary on Wednesday night.

Stevens, a fullback with the Bears in the NSW Cup competition, is alleged to have bitten off part of the ear of Balmain Ryde forward Jason Schirnack during an ugly brawl just over a week ago.

After initially pleading guilty as he prepared to throw himself at the mercy of the judiciary panel, Stevens will now fight the charge claiming the damage done to Schirnack's ear was the result of a punch and not a bite.

The Tigers will tender photos and a doctor's report as part of their submission, with Stevens facing a lengthy suspension - and even the possibility of a life ban - if found guilty.

In a newspaper report Stevens claimed he could not have bitten Schirnack as he was wearing a mouthguard throughout the incident.

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