Fifa have announced their ethics committee will be investigating alleged comments Lord Triesman made about England rival bidders for the 2018 and 2022 World Cups.
As part of the world governing body's investigation, the FA must provide an official report into the incident.
Triesman stepped down from his roles as FA chairman and 2018 bid chairman following allegations he accused the Spanish and Russian football federations of conspiring in bribery.
The 66-year-old announced his departure on Sunday and was swiftly replaced by Geoff Thompson, the British Fifa vice-president.
Thompson hopes to meet with Fifa president Sepp Blatter and Spanish federation president Angel Villar Llona at the Champions League final in Madrid on Saturday but that will not now be enough to put a full stop on the matter.
A Fifa statement released on Monday said: "Fifa can confirm that Fifa secretary general Jerome Valcke has requested the Fifa ethics committee to examine the alleged statements made by Lord Triesman in relation to the bidding process for the 2018 and 2022 Fifa World Cups."
It continued: "In addition, Fifa has sent a letter to the Football Association asking the FA to provide a report on this matter, including Lord Triesman's position.
"Fifa will not make any further comment on this matter until it has been dealt with by the Fifa ethics committee."