Diver Tom Daley is one of the most famous faces in the Great Britain team. Can he take his first chance to win an Olympic medal in London?
Here are Monday's events to watch out for (all times BST):
Daley has been through a huge amount since making his Olympic debut in Beijing, winning a world title in 2009 before tragically losing his father to cancer in 2011. Now aged 18, he and Waterfield will harbour hopes of a medal in the synchronised final.
China's Zhang Yanqan and Cao Yuan and Germany's Patrick Hausding and Sacha Klein are likely to offer strong opposition for the podium places.
- GYMNASTICS (16:25-19:30): GB men, team final
The British men have already made history by qualifying in third place for the team final, ahead of Olympic and world champions China and behind only the United States and Russia. Louis Smith, Kristian Thomas, Dan Purvis, Max Whitlock and Sam Oldham will attempt to add to their recent European title with what would be a stunning Olympic medal.
On the face of it, Britain's double world champions are as safe a bet for gold as you could find in any sport, but Grainger in particular will be taking nothing for granted.
The 36-year-old Scot has won silver at each of the last three Olympic Games, every time in more heartbreaking fashion. But since teaming up with 29-year-old Watkins in 2010, the pair have remained undefeated.
Also in action are the men's four, which Britain have won at the last three Olympics. Alex Gregory,Pete Reed,Tom James and Andrew Triggs Hodge are in heat two at 10:50. Their biggest rivals, Australia, go at 10:40.
- SWIMMING (19:43-19:46): Ryan Lochte, men's 200m freestyle
Lochte left Michael Phelps and the rest of the field trailing when he won the 400m individual medley on Saturday. He will be favourite to land a second gold of this Games in the 200m freestyle, which also features GB's Robbie Renwick.
Also in action are Britons Liam Tancock and Gemma Spofforth in the men's and women's 100m backstroke finals respectively. Tancock goes up against France's Camille Lacourt, while Spofforth faces Australia's Emily Seebohm and American Missy Franklin.
- GB TEAMS IN ACTION
Basketball women v Canada (20:00), Handball women v Russia (14:30), Hockey men v Argentina (19:00), Volleyball women v Algeria (22:00), Water Polo women v Russia (18:20).