Crusaders prop Richard Moore has received a one-game ban from the Rugby Football League following his tangle with Leeds' Brent Webb.
But Webb has escaped a ban, despite being found guilty of the same Grade A offence of punching in Monday's meeting at Headingley.
The previous disciplinary records of both players were taken into consideration by the panel.
But Moore was deemed by the panel to be the aggressor in the incident.
Both players were fined £300, while Webb was cautioned following the 10th minute incident in a game that the Rhinos went on to win 34-16.
Webb was also issued with a caution for a high tackle on Bradford's Olivier Elima in Leeds' 30-22 win on Thursday.