British and Irish Lions prop Cian Healy has been cited for allegedly biting Western Force scrum-half Brett Sheehan.
Sheehan accused Healy of biting his arm in the 17th minute of
the Lions' 69-17 win over Force in Perth.
Healy, whose tour may be over after an ankle injury, will be at a disciplinary hearing at 00:00 BST on Friday.
The incident was referred during the match to the television match official, who ruled there was no evidence to support Sheehan's claim.
"I don't know if it was an accident or on purpose," Sheehan told Australian television at half-time.
But Healy has now been cited under Law 10.4(m) of International Rugby Board's laws of the game, which states "contrary to good sportsmanship, a player may not bite an opponent".
If found guilty Healy faces a lengthy ban. England hooker Dylan Hartley
was banned for eight weeks in 2012 for
biting the finger of Ireland's Stephen Ferris.
