Benetton flanker Francesco Minto has been suspended for three weeks following his red card in his side's 33-28 defeat to the Scarlets.
The back-row was sent-off by Mathieu Raynal for a tip tackle on lock David Bulbring after the French referee appeared to overrule the Television Match Official.
Despite fighting their way back into the contest following Minto’s departure, the Italians eventually succumbed to the Welsh region for their third successive defeat in this season’s Champions Cup.
A statement from the EPCR said: “The committee upheld the red card decision and found that the offence was at the mid-range of World Rugby's sanctions and selected six weeks as the appropriate entry point.
“The committee reduced the sanction by the maximum of 50 per cent due to the player's good disciplinary record before imposing a suspension of three weeks.
“Minto is free to play on 1 January 2018 and both he and the EPCR have the right to appeal the decision.”
Meanwhile, Ospreys wing Hanno Dirksen, Glasgow hooker George Turner and Lyon back three player Timilai Rokoduru have been banned for one, four and seven weeks respectively.