Rio 2016 Olympics: All you need to know ahead of day four as David Florence targets gold

15 medals up for grabs with Team GB looking to add to their tally.

15 medals are up for grabs on day four of Rio 2016 with Great Britain hopeful of adding to their tally in swimming, equestrian, judo and canoe events.

Where to watch

Live coverage and highlights of the action is available on BBC One, BBC Two and BBC Four throughout the day and into the early hours. There are also updates available via BBC Radio Five live.

Events to watch

The men's rugby sevens gets underway today while Andy Murray is back in action as the second rounds of the men's tennis singles begins, with the women's third round also taking place.

There are medals to be won in weightlifting events with the women's 63kg and men's 69kg commencing, while there is another evening of swimming to look forward to. Siobhan-Marie O'Connor and Hannah Miley of Team GB are hoping to be in contention for medals in the 200m-individual medley (IM) while Georgia Coates and Eleanor Faulkner compete in the 200m-butterfly.

Britons to watch

David Florence settled for silver in Beijing and London, can he finally clinch gold? He will have the chance to do that today in the canoe slalom event. William Fox-Pitt, Pippa Funnell, Kitty King and Gemma Tattersall are also hoping to go one better than four years ago in clinching gold in the equestrian team event.

Team GB's gymnastics women's team of Ellie Downie, Amy Tinkler, Becky Downie, Claudia Fragapaneand Ruby Harrold also have their eye on a podium spot after finishing fourth in qualifying on Sunday. Meanwhile Alice Schlesinger will be hoping to make an impact in the women's 63kg judo event.

Schedule highlights – All times BST