Dragons lock Jack de Belin has been found guilty of a dangerous contact charge at the NRL judiciary on Tuesday night, and will be miss his side's clash with Newcastle.

De Belin was slapped with a grade one dangerous contact (head/neck) charge in St George Illawarra's loss to Parramatta.

The guilty verdict means the Dragons forward will miss one game and has 75 carryover points.

Wests Tigers forward Tim Grant will also be suspended for one match after he pleaded no contest to a dangerous throw charge from his side's lost to the Sharks.