Tennis-Washington Open men's singles semifinal results

Sun Aug 4, 2013 5:15am BST

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Aug 4 (Infostrada Sports) - Results from the Washington Open Men's Singles Semifinal matches on Saturday 
1-Juan Martin Del Potro (Argentina) beat 3-Tommy Haas (Germany) 7-6(4) 6-3 
8-John Isner (U.S.) beat Dmitry Tursunov (Russia) 6-7(7) 6-3 6-4

After wave of QE, onus shifts to leaders to boost economy

DAVOS, Switzerland - Central banks have done their best to rescue the world economy by printing money and politicians must now act fast to enact structural reforms and pro-investment policies to boost growth, central bankers said on Saturday.