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Serena Williams reached the WTA Finals semis and was crowned year-end world number one without picking up a racquet on Friday when results went her way at the season finale in Singapore. The four-time champion was in stark danger of crashing out but she earned a reprieve when Simona Halep, her tormentor in a crushing 6-0, 6-2 defeat earlier this week, won a set against Ana Ivanovic. Caroline Wozniacki stormed past Petra Kvitova 6-2, 6-3 to set up a semi-final against Williams on Saturday, while Halep will play Agnieszka Radwanska in the last four. Ivanovic departs despite beating Halep 7-6 (9/7), 3-6, 6-3, while Sharapova also leaves with her head held high after rallying for a 7-5, 6-7 (4/7), 6-2 win over Radwanska.
By Alastair Macdonald BRUSSELS (Reuters) - In a vivid display of public fury at European Union technocrats, British Prime Minister David Cameron refused to pay a surprise 2.1-billion-euro bill (1.65 billion pound) on Friday as EU leaders ordered an urgent review of how the budget figures were arrived at. As Eurosceptics at home leapt on news that the EU executive - a "thirsty vampire" - had demanded a sum worth about a seventh of London's annual payment after a rare statistical review of national incomes, Cameron demanded action from fellow leaders at a summit in Brussels calling the bill "completely unacceptable". He found some sympathy around the table - a visibly furious Cameron told a news conference that Italian Prime Minister Matteo Renzi had also lambasted "bureaucrats without a heart", who made it harder to persuade citizens of the Union's value. "It's an appalling way to behave," Cameron said.