The 32-year-old middle forward was referred straight to the judiciary and is facing a four-to-six week ban for a Grade E charge.
The Warrington prop is under fire for attempting to drag St Helens player Sione Mata’utia to his feet following a tackle during their clash.
Mata’utia – also a former NRL star with the Knights – was taken to ground by Vaughan and then looked injured, band eing slow to get to his feet, prompting Vaughan to grab his shirt pull.
If found guilty and banned, Vaughan’s Super League season will be over.
Prominent long-time Australian commentator Andrew Voss said, “this charge is a gee up, surely” in response to the Vaughan vision on X, formerly Twitter.
It would be a major blow for the Wolves given Vaughan has been arguably the form forward of the Super League this season, having run the most metres in the competition.
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He was a star in the NRL for a decade, playing 205 games for the Raiders, Dragons, and Bulldogs before heading overseas this year.
He also played six State of Origin games for the Blues, two Tests for Australia and six for Italy.
Vaughan courted controversy in 2021 when the Dragons sacked him for hosting an illegal house party during COVID-19, and reportedly for an earlier sexting scandal.
The veteran prop was handed a lifeline by the Bulldogs but spent only one season at the kennel before departing last year.