Ten days ago, 18-year-old Canadian wild card Bianca Andreescu captured one of the biggest titles on tour, at the BNP Paribas Open. She's since had to retire from the fourth round of Miami, but the Canadian-teen mantle has by no means been abandoned.
On the top half of the Miami men's draw, Felix Auger-Aliassime, also 18, has won six consecutive matches to make the quarterfinals; he had to come through qualifying despite being ranked No. 57. Once into the main draw, he knocked out Casper Ruud, Marton Fucsovics, Hubert Hurkacz and Nikoloz Basilashvili.
He takes on No. 11 seed Borna Coric in quarters on Wednesday night, in what could be a high-reward match, as the highest seed remaining on his side of the draw is No. 7 John Isner.