Cian Healy has been cited for allegedly striking Toulon's Guilhem Guirado during his side's loss to the Top 14 side on Sunday.
Three Leinster players received yellow cards during the game, the first of whom was Healy, in the 26th minute, for what appeared to be a knee on the Toulon hooker.
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Punishment for striking and opponent with the knee is as follows:
Low End: 3 weeks; Mid-Range: 8 weeks; Top End: 12 to 52 weeks.
The prop's hearing will take place in Paris on Thursday.
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