Osaka, 20, maintained her focus to become the first Japanese player to win a Grand Slam. "You owe me an apology", she shouted.
"It feels a little bit, like, surreal".
She is also the second Japanese player to reach a Grand Slam singles final after Kei Nishikori, who lost in the final of the U.S. Open in 2014. I am sure that loss in 2015 sticks with her, but I think the positives are that she's finding a way to work through the tough moments. "I'd rather lose", she told Ramos, before opening up a break-point opportunity in the fourth game, which Osaka saved following an outstanding 19-shot rally.
"A year ago I was fighting for my life in the hospital after I had the baby", added Williams, who battled life threatening blood clots after a hard delivery.
"Having a child and having all the duties of a mother and trying to come back and trying to play at the elite level and she's doing it. I thought I was visibly shaking and stuff (from nervousness)". "My impression of her is that she sticks to her beliefs and is powerful".
The roles were reversed in the next game.
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Osaka, who stunned her idol in the first round at the Miami Open earlier this year in straight sets, saved two more chances but was unable to withstand a third as an unforced error handed Williams a 3-1 lead.
The Japanese sensation can expect a tough test this time around but she has the game to test even the best in the business, which was evident during her title-winning run in Indian Wells.
Another couple of breaks followed as she fed the Latvian a bagel, and the American will contest her 31st major final at the weekend. Osaka found herself serving for the set and she closed it out in 37 minutes. "I just feel like there's a lot of growth to still go in my game". She is the first woman from Japan to reach a Grand Slam title match.
"You keep fighting. then for her to come up with some of those shots, it was hard". "Because I'm a woman, you're going to take this away from me?" she yelled at tournament officials.
Soon the 23-time Grand Slam victor had reeled off five games in a row as she assumed complete control and the set followed swiftly after.
In fact she closed it out with a service victor that bounced wildly off the frame of Keys's racquet.