The Olympic rings, the Rainbow Bridge and the Tokyo Tower are seen at night in Tokyo on May 15, 2020. (CHARLY TRIBALLEAU / AFP)

LONDON - The Tokyo Olympic Games will be cancelled if it is not possible to hold it in 2021, International Olympic Committee (IOC) President Thomas Bach told BBC Sport.

The Tokyo Olympic Games, originally scheduled for July to August this year, has been postponed by one year to July 23 to August 8, 2021.

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You cannot every year change the entire sports schedule worldwide of all the major federations. You cannot have the athletes being in uncertainty

Thomas Bach, President, IOC

In April, Tokyo 2020 CEO Toshiro Muto denied further postponement of the Games before Japanese Prime Minister Shinzo Abe made it clear later that the Games will not be held unless the COVID-19 pandemic is contained.

"You cannot forever employ 3,000, or 5,000, people in an organizing committee," the IOC chief was quoted as saying. "You cannot every year change the entire sports schedule worldwide of all the major federations. You cannot have the athletes being in uncertainty."

Although Bach stressed "clear commitment" to host the Games in July next year, the IOC chief admitted they have to consider health measures, maybe quarantine for part of athletes and for other participants.

"There are so many different options that it's not easy to address them [now]," he said, adding that appropriate decision could only be made when they "have a clear view" on how the world will be like on the new dates for the Games.

Speaking of the possibility of having the Games behind closed doors, Bach said:"This is not what we want."

"But when it then would come to the decision... I would ask you to give me some more time for consultation with the athletes, with the World Health Organization, with the Japanese partners," he admitted.

This handout provided by the World Health Organization (WHO) shows WHO Director-General Tedros Adhanom Ghebreyesus (L) presenting a t-shirt to International Olympic Committee (IOC) President Thomas Bach prior to signing a cooperation agreement on promoting healthy society through sport and on contributing to the prevention of non-communicable diseases on May 16, 2020 at the WHO headquarters in Geneva. (Christopher Black / World Health Organization / AFP)

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Last Thursday, the Japanese government decided to lift the state of emergency ahead of the planned deadline for 39 of the country's 47 prefectures, but Tokyo is still under state of emergency. 

As of Wednesday night, the confirmed COVID-19 cases in Japan have risen to 16,433, while the death toll from the pneumonia-causing virus stands at 797.