Olympics: Tuesday August 16

KEY STAT: Usain Bolt returns in the 200m, the Aussie sailors chase their first gold medal and a great morning for athletics fans with men’s 800m, women’s 400m and men’s pole vault finals.

AUS MEDAL WATCH: Tom Burton (sailing); Glenn O’Shea (cycling – omnium)

BIG NAMES & TEAMS: Usain Bolt (USA athletics), Anna Meares (track cyclist), Dani Samuels (athletics), Caster Semenya (RSA athletics), Edwina Tops-Alexander (equestrian)