The match is already assured of testing the previous record set in last year's NRL grand final between the South Sydney Rabbitohs and Canterbury-Bankstown Bulldogs, and if all ticketholders attend the game next Tuesday, it will set a new all-time high crowd figure under the current configuration.

The additional seats have been erected directly above the players tunnel on the bottom tier of the stadium as well as on level six, where advertising boards have been taken down to allow for unrestricted viewing.

"This is a game that looms as one of those unique 'Where were you' sporting moments and the clubs and the stadium want to do everything we can to ensure as many fans as possible can come and see English Premier League champions Chelsea against Sydney FC on 2 June," said Greg Sleigh, ANZ Stadium's general manager of event and business development.

"There's a perception that the last tickets sold are always toward the back of the stadium – on the contrary, this is the perfect case where some of the best seating for the event has just come back on sale."

Chelsea will announce their squad to play Sydney FC on the evening of Tuesday, May 26 but it's understood that Didier Drogba will definitely be participating despite announcing his final match for the club was their final match of the EPL season.