Soccer's world governing body, FIFA, has asked authorities in 2018 World Cup host Russia for "clarification and more details" about a new gay law that has been introduced in that country.
The legislation prohibiting "propaganda of nontraditional sexual relations among minors" has provoked an international outcry since President Vladimir Putin signed it into law in June.
The International Olympic Committee has also asked for explanations ahead of the Sochi Winter Games in February 2014.
There have been calls for the Sochi Olympics and the 2018 World Cup to be boycotted.
In a statement issued on August 13, FIFA noted that its statutes "foresee zero tolerance against discrimination based, among other, on sexual orientation."
FIFA also said it trusts Russia will deliver on its promise to provide all visitors and fans to the 2018 World Cup "with a warm welcome and ensure their safety."
Based on reporting by AP and CNN