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<http://webisa.webdatacommons.org/23770053>	<http://www.w3.org/ns/prov#value>	"st the competition that he is accomplished it with, I would have to say I would think that Roger is the greatest player, Laver said Thursday at the Shanghai Masters.The Australian won the Grand Slam in 1962 and 1969." .
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<http://webisa.webdatacommons.org/23770053>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<timesleader.com> .