The International Olympic Committee has asked Tokyo organizers to finalize plans for the main stadium for the 2020 Games after it was confirmed that building costs had almost doubled. Toshiaki Endo, the newly appointed minister in charge of the 2020 Tokyo Olympics, said at a press conference on Tuesday that IOC President Thomas Bach told the head of the organizing committee to finalize the plan before an IOC meeting in late July. The Japanese government said on Monday it expects the overall costs of building the new National Stadium, also the showpiece venue for the 2019 Rugby World Cup, to soar to $2 billion, up from the original estimate of $1.3 billion. The Tokyo municipal government has been bickering with the central government over how costs will be shared. (For more sports news andupdates, followAhramOnlineSportson Twitter at@AO_Sportsand onFacebookatAhramOnlineSports.) http://english.ahram.org.eg/News/134135.aspx