Italy prop Marco Riccioni was on Wednesday banned for two club matches after receiving a red card in his side's 57-10 Nations Championship loss to Australia in Perth.
A track-suited Riccioni was on the sidelines when he ran to get involved in a scrap that spilled over the touchline during the second half of Saturday's Test.
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The incident involved Wallabies debutant Miles Amatosero, with the tighthead substituted from the field 10 minutes earlier.
The Perpignan front-row forward appeared to throw a punch in the melee and was given a red card, which sent him to the changing rooms for the remainder of the match.
Italy didn't lose a player for the incident, although they were unable to overcome the large margin.
Riccioni will now sit out matches against Biarritz and Bath next month after the tournament's foul play review committee (FPRC) found him "guilty of conduct contrary to the spirit of good sportsmanship".
"The Foul Play Review Committee (FPRC) has found Italy prop Marco Riccioni guilty of conduct contrary to the spirit of good sportsmanship, in breach of Law 9.27," the statement said.
"The unsportsmanlike conduct, for which Riccioni received a red card, occurred in the 66th minute of the Nations Championship match between Australia and Italy at HBF Park, Perth.
"The FPRC determined that the act of foul play merited a low-end entry point of four weeks/matches.
"In light of Riccioni’s admission that he committed an act of foul play and the acceptance that it was deserving of a red card, along with mitigating factors such as his disciplinary history, conduct, and remorse, the FPRC imposed a reduction of two weeks on the sanction."
Italy's next match in the Nations Championship is against South Africa in Turin on November 7.
