Naomi Osaka is the first Japanese woman to reach a Grand Slam final Venue: Flushing Meadows, New York Dates: 27 August-9 September Coverage: Live radio coverage on BBC Radio 5 live sports extra; live text commentaries on the BBC Sport website Naomi Osaka says she "always dreamed" she would play her idol Serena Williams in a Grand Slam final after both reached this year's US Open decider. The 20-ye
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