Knights fullback Kalyn Ponga faces two weeks on the sidelines following a shoulder charge during Newcastle's 42-24 victory over the Wests Tigers at Leichhardt Oval on Sunday.
The 72nd minute incident occurred in a tackle with Tigers custodian Corey Thompson and Ponga was issued with a grade-one offence by the NRL judiciary on Monday.
An early guilty plea would still see Ponga suspended this weekend.
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The undefeated Knights are due to meet winless Cronulla at Jubilee Stadium on Saturday before hosting the North Queensland Cowboys at McDonald Jones Stadium on April 3.
Ponga's base penalty carried 200 points (two weeks), but a prior non-similar offence in the last two years carried a 20 per cent loading.
His revised total of 240 points would be reduced to 180 (one week and 80 carryover points) with an early guilty plea.
The Knights have the option of contesting the charge.
Meanwhile, from shortly after in the same second-round game, Tigers back-rower Luciano Leilua was charged with grade-one dangerous contact on Ponga.
Leilua would escape penalty with an early guilty plea.
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