IOC President Thomas Bach has said the Games would have to be scrapped if the event cannot be held next year but Takahashi said cancelling them would have major financial implications.
After unveiling former Liverpool coach Alex Miller as their new manager, Japan's JEF United Chiba are targetting Michael Owen.
Japan coach Zico has hinted he intends to quit after the 2006 World Cup, a Japanese newspaper reported on Friday.
Ahn, who famously scored the golden goal that knocked Italy out of the World Cup, was to join English premier league club Blackburn Rovers last August until the deal broke down due to visa problems.\n\n
Towns and cities lined up to host Olympic training or events have increasingly expressed resistance
Last month, the Tokyo 2020 Games were postponed to July 2021 due to the ongoing Coronavirus pandemic.
Brazil's captain said he is undecided about joining Yokohama F-Marinos this July despite reaching an agreement with the J-League club.