Olympic and former World champion Melaine Walker stormed to a world-leading time in the women's 400 metres hurdles.
The 29-year-old, who could only manage silver at the Daegu World Championship last year, clocked 54.62 seconds to finish ahead of fellow Jamaican Kaliese Spencer in 54.99.
Jamaica’s Melanie Walker leads the women’s 400m hurdles at the IAAF Diamond League in Doha on Friday. Pic/AFP
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