Thank you, updated

Done.

Use of semi-colon value separator is frowned upon:
osm.wiki/Semi-colon_value_separator
'multi' fits here; no need to isolate one sport over others.

FYI link to (non-wikipedia) source for information about use as a soccer field:
https://www.wanderland.com.au/services/stadium-maps/spotless-stadium/

See list of Tenants here:
https://en.wikipedia.org/wiki/Sydney_Showground_Stadium

Cricket, soccer, Rugby League, and AFL all listed.