Leinster fly-half, Argentine Felipe Contepomi could also join up with South African Ollie LeRoux, veteran England hooker Mark Regan and Frenchman Sebastien Chabal.
Michael Cheika introduced the Ollie leRoux for the closing stages but even the South African's newly-added pounds couldn't force a way through the tight Edinburgh defence.
South Africa prop Johan leRoux was sent home from a tour of New Zealand in 1994 after being found guilty of biting the ear of opposition captain Sean Fitzpatrick.