South Africa's director of rugby Rassie Erasmus is to face a misconduct hearing after publicly criticising the match officials following their first Test defeat to the British and Irish Lions.
Erasmus accused the Lions of "reckless and dangerous" play in their 22-17 win last month and hit out at the standard of refereeing from Nic Berry.
The 48-year-old made the claims in a 62-minute clip posted on social media as he highlighted what he felt were a number of calls that went against South Africa.
He also retweeted clips from an anonymous Twitter user, alleged to be one of his own accounts, highlighting "questionable calls" made by the tourists.
World Rugby has now cited Erasmus for his comments and he, along with South African Rugby, will face a judicial hearing.
"Match officials are the backbone of the sport, and without them there is no game," a statement from the rugby governing body read on Monday.
"World Rugby condemns any public criticism of their selection, performance or integrity which undermines their role, the well established and trust-based coach-officials feedback process, and more importantly, the values that are at the heart of the sport.
"Having conducted a full review of all the available information, World Rugby is concerned that individuals from both teams have commented on the selection and/or performance of match officials.
"However, the extensive and direct nature of the comments made by Rassie Erasmus within a video address, in particular, meets the threshold to be considered a breach of World Rugby regulation 18 (misconduct and code of conduct) and will now be considered by an independent disciplinary panel.
"World Rugby has reminded the management of both teams of the importance of this area and their obligations regarding the values of the sport."
In response, SA Rugby posted a brief statement on Twitter, which read: "SA Rugby has noted the charges brought by World Rugby and will respond through the designated channels. There will be no further comment from SA Rugby until the process is complete."
South Africa defeated the Lions 27-9 in a fiery encounter at the weekend to level the three-match series at 1-1 and set up a decider in Cape Town on Saturday.
Erasmus, who has doubled up as a water carrier, may still be present for that showdown as a hearing date has not yet been set by World Rugby.