The IWGA has revealed they have already received expressions of interest from potential World Games host cities from Europe, Asia and South America.

Interested cities have until July 31 to submit a bid to the organisation, with a host due to be selected at the 2019 IWGA Annual General Meeting.

Russia, which has never staged the event in its 37-year history, are among the possible bidders following reports both Sochi and Kazan are weighing up entering the race.

The IWGA have released an updated version of their 119-page document, which includes a timeline and the criteria a potential host city must meet in order to be awarded the Games.

"The newly released document supports the candidate city’s representatives in getting a good overview of all the facts and the requirements for hosting the World Games, and includes a clear structured questionnaire which will enable the IWGA Evaluation Committee to compare bids in a transparent and fair way," IWGA President José Perurena said.

Around 5,000 athletes, coaches and officials from more than 110 countries are expected to attend the 2025 World Games, which could include as many as 200 medal events.

The bidding process for the event is typically opened the year after the preceding edition, with the Polish city of Wrocław playing host in 2017.

Birmingham, located in the American state of Alabama, is due to stage the 2021 event.