Brian Mujati has accused Steven Sykes and Heinke van der Merwe of making racist remarks about him during Leinster’s loss to Northampton on Friday night.
The Zimbabwean-born Springbok prop made the allegations on Twitter on Saturday morning.
‘Steven Sykes and Heinke van der Merwe were calling me a baboon during the scrums last night. Racism is still alive and things don’t change. I was shocked by how how blatant they were being and to think I actually thought I knew Heinke from back in the Lions days.
‘The guy then tries to shake my hand after the game. Naturally I kindly told him to f**k off. I wish them all the best with their careers.’
Leinster issued a statement shortly afterwards.
‘Following allegations made by a Northampton Saints player this morning via his personal Twitter account, Leinster Rugby are holding a full internal investigation. The managements of both teams are in close communication and hopefully the matter will be resolved as soon as possible.
‘No further comment will be made at this time until that resolution has been reached.’