Williams is trying to become the first tennis player since Steffi Graf in 1988 to earn all four grand slam titles in a single season. Photo: AFP

Serena Williams’ grand slam bid on hold as US Open postpones semi-finals

Topic |   US Open tennis 2015

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Williams is trying to become the first tennis player since Steffi Graf in 1988 to earn all four grand slam titles in a single season. Photo: AFP
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