Swimming: Men’s 4×100-metres medley relay
U.S. star Michael Phelps says he’ll retire after these Games, and if so, this will be his last event.
Tennis: Women’s final
Serena Williams of the U.S. seeks her first Olympic gold medal in an event that has not always smiled upon favourites.
Helen Jenkins of Britain hopes to add Olympic gold to her two world titles (2008 and 2011), but she’ll be pushed by a host of others, including 2008 Olympic bronze medalist Emma Moffatt of Australia and Paula Findlay of Canada.
Sailing: Men’s 470 event
Malcolm Page of Australia is the most-highly decorated 470 men’s sailor of all time, having won four world championships. He is the defending Olympic champion, although four years ago, he sailed with Nathan Wilmot. This time, his partner is Mathew Belcher.