Osaka advances to Miami Open quarters with straight-set victory over Riske

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Former world No. 1 Naomi Osaka has made it through to the quarter-finals at the Miami Open — just the second time she has managed to advance that deep in any tournament over the last year. Osaka beat Alison Riske of the U.S. 6-3, 6-4 on Monday in Miami Gardens, Fla., moving into a round-of-eight matchup with Danielle Collins.