Cell C Sharks centre Rohan Janse Van Rensburg was sent off following two dangerous hits on Leinster's Garry Ringrose and Ross Byrne in the space of a minute that were both worthy of red cards.
The incidents occurred during Leinster's 54-34 victory over Sharks in a hugely entertaining encounter at the RDS Arena in Dublin.
The first shot on Byrne saw van Rensburg lead with the shoulder and make direct contact with the replacement's head.
