9.00am (AEST) – Tennis – US Open Women’s Semi-Finals – Leylah Fernandez v Aryna Sabalenka followed by Emma Raducanu v Maria Sakkari

​​7.50pm (AEST) – AFL Preliminary Final – Melbourne Demons v Geelong Cats – Perth

7.50pm (AEST) – NRL Qualifying Final – Melbourne Storm v Manly Sea Eagles – Sunshine Coast

World Suicide Prevention Day

Braveheart’s White Balloon Day to benefit child protection advocacy

Birthdays for actor Colin Firth (1960), Alibaba co-founder Jack Ma (1964), ballerina Misty Copeland (1982), Matilda’s captain Sam Kerr (1993)

Anniversary of:
• the birthdays of fashion designer Karl Lagerfeld (1933), poet Mary Oliver (1935)
• the founding of OPEC aka the Organisation of the Petroleum Exporting Countries (1960)
• the release of Nirvana’s single Smells like Teen Spirit (1991)
• the debut of The X-Files (1993)