Japan is currently sweating through a deadly heatwave that has seen the mercury top 40 degrees in some parts of the country and sparked fears over the well-being of participants at the 2020 games.
The appointment of Mansai Nomura, who performs in Japan's centuries-old classical theatre and is well known domestically, may suggest the importance that the country's traditional arts will play in the ceremonies.
Officials insist they are firmly on track for the Games, which will open on July 24, 2020, following a calamitous start to their preparations.
The blue-checked Olympic mascot was dubbed "Miraitowa" -- combining the Japanese words for future and eternity, organisers said at an event in Tokyo.
The Faroe Islands native would have much preferred to compete under the flag of Denmark's autonomous territory in the North Atlantic.
Sweden currently has no ice track of its own for bobsleigh, skeleton and luge competitions.
Professor Azuma Taguchi of Tokyo's Chuo University used a mathematical model to predict the flow of passengers on a hypothetical day during the Summer Olympics.
Tokyo's Olympic organisers have faced criticism over a series of embarrassing public relations blunders since beating Madrid and Istanbul for the right to host the 2020 Games.
IOC coordination commission chairman John Coates paid tribute to a "very, very successful" Games in South Korea as he started two days of meetings with Tokyo 2020 officials.
Tokyo is stepping up preparations for the next event on the Olympic calendar, with busy building sites dotted around the Japanese capital.
Graz in Austria, Calgary in Canada, a joint bid from Milan, Turin and Cortina d'Ampezzo in Italy, Sapporo, Japan, Stockholm, Sweden, Sion in Switzerland, and Erzurum, Turkey, have put their names forward.
The mascot, which has yet to be named, was selected by elementary school kids across the country from a shortlist of three competitors instantly recognisable as "made in Japan"
Jeglic is a forward who plays his club hockey in the Kontinental Hockey League for Russian side Neftekhimik Nizhnekamsk
Alexander Krushelnitsky, who won bronze in the mixed doubles curling with his wife Anastasia Bryzgalova, was the subject of a new procedure at the CAS anti-doping division
Their latest defeat was 2-0 to Switzerland, but the scoreline would have been much worse were it not for Shin