NRL premiership favourites St George Illawarra could be without three of their in-form players for Saturday night's NRL clash against Canberra.

Sitting pretty four points clear atop the NRL ladder, the Dragons are steaming towards September with seven consecutive victories.

But it seems the judiciary could halt St George Illawarra's charge and level the playing field, with two Dragons to front up to NRL headquarters on Wednesday night.

Front rower Justin Poore will risk a three game ban by choosing to fight the grading of a grade two dangerous throw charge at the judiciary.

Poore was placed on report for his spear tackle that broke the nose of Penrith winger Shane Elford during the Dragons' 25-6 win over the Panthers on Friday night.

A downgrade to a grade one charge would free Poore to play against Canberra.

Poore will be joined at the judiciary by teammate Beau Scott, who has pleaded not guilty to a separate dangerous throw charge which carries a one game ban.

The third red-faced Dragon, Matt Prior, will miss the trip after taking the early guilty plea for his involvement in the same tackle for which Scott was charged.

The potential loss of the in-form trio comes at a key time for the Dragons.

St George Illawarra have beaten Canberra just once in their past 10 clashes, with only two victories in eight trips to the nation's capital.

Strugglers Cronulla, who are already low on troops, could be in worse shape and risk losing backrower Jack Afamasaga to suspension for Sunday's clash with Wests Tigers.

Afamasaga can avoid a week on the sidelines with a early guilty plea after being charged with a grade two careless high tackle.

The charge stems from an incident in his team's 30-10 loss to Brisbane at Suncorp Stadium on Monday night.

Afamasaga will face a one week ban if he unsuccessfully contests the charge before the judiciary.

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