"You cannot every year change the entire sports schedule worldwide of all the major federations. You cannot have the athletes being in uncertainty."
"You cannot have so much overlapping with a future Olympic Games, so I have some understanding for this approach by our Japanese partners."
Bach says the IOC is committed to the 2021 Games -- but he's keeping it real ... it's impossible to know for sure if the world will be ready for that kind of a gathering with the coronavirus threat still looming.
"We have to be prepared for different scenarios. There is the clear commitment to having these games in July next year."
"At the same time, looking at the scenarios this may require towards the organisation, with regard to health measures, these maybe need quarantine for the athletes, for part of the athletes, for other participants.
"What could this mean for the life in an Olympic Village and so on? All these different scenarios are under consideration and this is why I'm saying it's a mammoth task, because there are so many different options that it's not easy to address them [now]. When we have a clear view on how the world will look on 23 July, 2021, then [we will] take the appropriate decisions."