The American believes she can join the elite at the top of the rankings.
Iga Swiatek will likely be the WTA's new No.1 on April 4, but it isn't a lock just yet.
Seeded third in Miami, Stefanos Tsitsipas is playing for his first title of the season.
"The MRI was really positive or else I wouldn't be here," Taylor Fritz said of the state of his creaky ankle ahead of the Miami Open.
"I always looked up to Ash. I still do," said world No. 2.
Vasek Pospisil is now a playing Penguin.
"The dreams that kept me going back then were to win Grand Slams and to play at Wimbledon," Emma Raducanu says.
