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Defending champion Naomi Osaka fought her way into the second round of the US Open with victory over Anna Blinkova.
Osaka, who lifted her first major title at Flushing Meadows a year ago, fell 4-1 down in the first set but then won five straight games on the way to an unconvincing victory.
Seed - Chance - Blinkova - Set - Tie-break
The Japanese top seed had a chance to win at 6-5 in the second but was broken back, before Blinkova managed to steal the set in the tie-break.
Osaka moved 4-1 ahead in the deciding set, then broke again to win 5-2 and see off a dogged Blinkova.
Osaka - Astra - Sharma - Magda - Linette
Osaka will now face Astra Sharma or Magda Linette in the next round.
The reigning champion lifted...
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