Coach's Words Inspire Osaka; Nishikori Also Into Semifinals

Naomi Osaka

Photographer: Bradley Kanaris/Getty Images

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Brisbane, Australia (AP) -- Naomi Osaka called in her coach for advice on how to swing momentum after losing the first set to Anastasija Sevastova, and it did the trick.

The U.S. Open champion responded by conceding only five points in the next set on her way to a 3-6, 6-0, 6-4 win Thursday that secured her spot in the Brisbane International semifinals.