Hockey World Cup: Olympic champions Argentina toil hard for 4-3 win over Spain

<p style="background: white; vertical-align: baseline;"><span style="font-family: 'Georgia','serif'; color: #48494a;">Agustin Mazzilli and Gonzalo Peillat scored a brace each but Olympic champions Argentina were made to dig deep to eke out a 4-3 win over Spain in their Pool A match of the hockey World Cup in Bhubaneswar on Thursday.</span></p> <p style="background:

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