World Cup officials have asked England for a report into events surrounding Dan Luger's appearance as a substitute during the tense Pool C victory over Samoa in Melbourne yesterday.
England were at the centre of a World Cup investigation as they arrived at their luxurious base on Queensland's Gold Coast today, with tournament chiefs looking at why the joint World Cup favourites appeared briefly to have 16 players on the pitch.
And tournament director Fraser Neil has now requested a report from the England management.
Rugby World Cup have also confirmed a complaint made by England regarding the behaviour of a match official on "a related issue".
England were staying tight-lipped on the matter today, not wishing to pre-empt any findings from World Cup bosses.
But Samoan assistant coach Michael Jones played down the incident, on arrival at Brisbane Airport.
"Mistakes happen," Jones said. "We don't want something like this to blight what was a wonderful game of rugby.
And Samoa coach John Boe confirmed there would be no protest from his camp. Boe's more pressing concerns surround injuries to Gloucester centre Terry Fanolua and prop Jeremy Tomuli, who both look set to miss next Saturday's World Cup eliminator against South Africa.
Luger's late entrance as a substitute caused confusion on the touchline at Telstra Dome.
The situation was quickly addressed and Luger was hauled off, but World Cup bosses will now make their own assessment.
Reports from the game's fifth official, plus the match commissioner - former Australian international Geoff Shaw - are currently awaited.
But it is highly unlikely that England will face any severe punishment.
The most probable scenario is a rap over the knuckles, and there is no suggestion of points being deducted or a replay ordered after England triumphed 35-22 to secure a quarter-final place.