'I wanted to impress her': Osaka's 'dream' Serena win

Naomi Osaka's giant-killing run in the United States has continued with a win over Serena Williams in a blockbuster first-round match at the Miami Open.

And the 20-year-old revealed after the 6-3 6-2 win that all she wanted to do was impress her idol.

"I was extremely nervous coming onto the court," Osaka said.

"I don't know if anybody knows this but Serena's my favourite player.

"Just playing against her is kind of like a dream for me so I'm very grateful that I was able to play her and even better that I was able to win."

Quizzed on how she played such strong tennis -- especially in the second set, when she served six aces -- against Williams, Osaka was genuinely unsure.

"I kind of wanted to impress her," she said.

"I just wanted to make her say 'come on' one time, and I think she did, so I'm really happy about that."

Osaka stunned the field to win last week's Indian Wells tournament in California, her first title on the WTA tour.

The youngster then produced the self-described 'worst acceptance speech' ever: