He's not too popular with All Blacks fans, has upset the Welsh at the tournament, now referee Wayne Barnes may be in hot water with Scotland supporters.
Barnes controlled Argentina's 13-12 win over Scotland in Wellington, a result that puts the Pumas on course for a quarterfinal showdown with the All Blacks and the Scots on the brink of elimination.
Dan Parks had the chance to win the game but his drop goal attempt went well wide.
However Puma's captain Felipe Contepomi says he was well offside when he charged at Parks to put him under pressure.
Contepomi says Scotland was the better side.
