The victory gives Nadal a record-equalling 20th Grand Slam title.
The 17-year-old stunned defending champ Simona Halep to blaze into the semifinals.
The tennis star made a bold statement after officials banned her from wearing a "Black Panther"-inspired catsuit.
She'll be allowed to rock the suit at Women’s Tennis Association matches, though it may still be barred from the French Open.
Tennis legend calls French Open dictates about Serena Williams' clothing disrespectful.
"One must respect the game and place," an official said months after she wore it at the tournament.
The 32-year-old Spaniard beat Austria’s Dominic Thiem in three sets.
The 23-time Grand Slam tournament champion was scheduled to play Maria Sharapova on Monday.
The tennis star and new mom said her outfit was dedicated to women who have had tough pregnancies.
Nadal defeated Stan Wawrinka in just over two hours.