Samoan Rugby officials will meet on Tuesday to discuss a Twitter tirade from one of their players about their team's short turnaround before last weekend's second game against Wales.
Samoa's centre Eliota Fuimaono-Sapolu accused the IRB of exploiting the smaller rugby nations as Samoa had only a four-day turnaround between matches while Wales had a week off, and they beat Samoa 17-10 in a pivotal group match.
Fuimaono-Sapolu, who came on as a replacement in the game in Hamilton, could face sanctions if his comments are found to be in breach of the IRB guidelines on the use of social media during the tournament.