With 2018 wins over Grand Slam champions Serena Williams, Victoria Azarenka and Maria Sharapova as well as reigning world No. 1 Simona Halep, Naomi Osaka has proven that she, too, has the potential to win a major — or perhaps several.

And the game's upper echelon could be just around the corner for the 20-year-old.

Or it could be years away.