8. -- Twitter has acquired MoPub, a startup that helps mobile publishers manage their ad inventory, TechCrunch reported.
9. -- Verizon (VZ - Get Report) is expected to raise $20 billion or more Wednesday in what would be the largest-ever debt sale by a company, The Wall Street Journal reported. Verizon will sell debt ranging in maturity from three to 30 years. The deal would help fund Verizon's $130 billion buyout of U.S. wireless joint-venture partner Vodafone (VOD).
10. -- Rafael Nadal beat top seed Novak Djokovic, 6-2, 3-6, 6-4, 6-1, to win his second US Open and 13th Grand Slam title.
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