The Rugby Football League (RFL) is investigating an alleged fracas involving Sydney Roosters and England lock Victor Radley.
The 24-year-old, whose side was knocked out of the Rugby League World Cup with a loss to Samoa last weekend, was reportedly involved in an altercation with Ireland international James Bentley.
Radley was part of a group of England players who returned to their Manchester hotel after their 27-26 semifinal defeat in London.