Mo Farah could become Britain's greatest track and field athlete later as he goes for gold in the 5,000m.
Victory in the event in which he is already world champion, seven days after he set the Olympic Stadium alight by winning the 10,000m, would top a golden Games for Team GB.
Usain Bolt will also be looking for his third gold of the Games as the world's fastest man joins Jamaica for the 4x100m relay final.
Britain looks set to boost its best medal haul in more than 100 years as Farah, two boxers and a kayaker aim for the top step of the podium.
Diver Tom Daley survived a major scare as he left it until his final dive last night to nervously progress past the first round of the men's 10m platform. The 18-year-old former world champion produced one of the worst displays of his decorated young career before narrowly sneaking through to the 18-man semi-final.
Victories in the ring mean two boxers have the chance to go for gold, with Britain guaranteed at least two more silvers. Luke Campbell, 24, from Hull, will take on his family friend John Joe Nevin, of Ireland, as he bids to fulfil his lifelong ambition of winning an Olympic title.
Welshman Fred Evans, who has delighted crowds with his no-holds-barred approach, will also hope to continue his magnificent run in the welterweight division.
Another super heavyweight Anthony Joshua beat Kazakhstan's Ivan Dychko in his semi-final bout to secure his place in Sunday's final.
Ed McKeever also goes for gold in the kayak sprint after storming through his heats in the fastest time of the day and then winning his semi-final in what turned out to be a formality at Eton Dorney. The 28-year-old former world and European champion is the hot favourite to win gold after spending the first week of the games in Barcelona preparing for the race. He will be watched by fiancee Anya Kuczha, a 26-year-old PE teacher.
Nick Woodbridge will also be hoping to challenge for a medal in the notoriously unpredictable modern pentathlon after winning bronze at last year's Olympic test event.
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