J-League has been conducting matches with a "super strict state of emergency" and a "limit of 5,000 spectators" for matches after July 10 to prevent the spread of the novel coronavirus infection.

As announced by the J-League yesterday, starting from September 19 (Sat), in the matches held under the super strict measures, "the upper limit of the number of spectators will be set at 50% of the capacity. However, for stadiums with a capacity of over 17,000 people, efforts will be made to gradually relax the restrictions from around 30%."
◇Announcement from J-League is here

Based on the official release from J-League, "the number of spectators and the timing of implementation will be determined by the home club, taking into account the local infection situation and stadium shape," FC Tokyo will continue to limit the number of spectators to 5,000 in September and gradually relax the restrictions from the home game in October, based on the club's judgment considering the infection situation in Tokyo.
We will inform you of the details as soon as they are decided.

To ensure that fans and supporters who come to the venue can enjoy watching the game with peace of mind, we will strictly adhere to and implement the league's guidelines for preventing the spread of the new coronavirus. We apologize for any inconvenience caused to visitors, such as temperature checks at the time of entry, but we kindly ask for your understanding and cooperation in strengthening infection prevention measures.

[Ticket Sales for September Home Games]
◇Sep 16 (Wed) Oita Trinita match here
◇Sep 20 (Sun) Vegalta Sendai match here
◇Sep 23 (Wed) Cerezo Osaka match here

◇Guidelines for attending September home games here
◇Regarding FC Tokyo/Ajinomoto Stadium's policy on hosting matches with spectators here