FILE - In this March 28, 2012, file photo, flags of the United States and Japan are carried during the opening ceremony at a season-opening baseball game between the Oakland Athletics and the Seattle Mariners at Tokyo Dome in Tokyo. Major League Baseball plans to start the 2019 and 2020 seasons in Asia and play regular-season games in England in June of both years. The collective bargaining agreement reached in November was finalized and sent to the clubs Friday, July 28, 2017. (AP Photo/Shizuo Kambayashi, File)
FILE - In this March 28, 2012, file photo, flags of the United States and Japan are carried during the opening ceremony at a season-opening baseball game between the Oakland Athletics and the Seattle Mariners at Tokyo Dome in Tokyo. Major League Baseball plans to start the 2019 and 2020 seasons in Asia and play regular-season games in England in June of both years. The collective bargaining agreement reached in November was finalized and sent to the clubs Friday, July 28, 2017. (AP Photo/Shizuo Kambayashi, File)
FILE - In this March 28, 2012, file photo, flags of the United States and Japan are carried during the opening ceremony at a season-opening baseball game between the Oakland Athletics and the Seattle Mariners at Tokyo Dome in Tokyo. Major League Baseball plans to start the 2019 and 2020 seasons in Asia and play regular-season games in England in June of both years. The collective bargaining agreement reached in November was finalized and sent to the clubs Friday, July 28, 2017. (AP Photo/Shizuo Kambayashi, File)