Gauff becomes youngest winner in a decade on WTA Tour
Cori Gauff became the youngest player to win a WTA main draw match in a decade as she rallied to beat fellow American teenager Catherine McNally in the first round of the Miami Open.
The teenager booked her place in the second round against number 14 seed Daria Kasatkina by battling past her 17-year-old opponent 3-6 6-3 6-4.
At 15 years and 18 days old, Gauff is the youngest winner in such a match since Madison Keys beat Alla Kudryavtseva in the opening round of the 2009 MPS Group Championships aged 14 years and 54 days.
There was success for British number one Johanna Konta, who sailed into the second round by beating American Jessica Pegula in straight sets.
The 2017 Miami Open champion beat the qualifier 6-1 6-4 in just 69 minutes to set up a second-round match with number 18 seed Wang Qiang.
Johanna Konta sailed through to keep British hopes of success aliveGetty Images
Three-time tournament champion Victoria Azarenka was ousted by number 19 seed Caroline Garcia in their second-round match.
The French player easily beat the former world number one 6-3 6-4, although she has not cleared the third round before and will next play 15th-seeded Julia Goerges.
Indian Wells champion Bianca Andreescu staged a remarkable recovery to defeat Irina-Camelia Begu and reach the second round.
The 18-year-old Canadian became one of the most unexpected champions of recent years when she won the title in the Californian desert, one of the biggest on the WTA Tour, as a wild card on Sunday.
Bianca Andreescu staged one of the biggest wins of her career in MiamiGetty Images
Andreescu has rocketed from outside the top 150 at the start of the year to 24th in the rankings but looked to be suffering an understandable letdown when she trailed Romanian Begu by a set and 5-1.
But Andreescu instead won 12 of the next 15 games to take the match 4-6 7-6 (2) 6-2 and extend her winning streak.
She will now face another exciting young player in American Sofia Kenin, who was the last player to beat her in Acapulco at the start of this month.
Venus Williams again struggled with her serve but battled to a 7-5 6-3 victory over qualifier Dalila Jakupovic.
Naomi Osaka’s older sister Mari was given a wild card but lost 6-2 6-4 to another teenage American, 16-year-old Whitney Osuigwe.
In the second round, third seed Petra Kvitova needed only 69 minutes to defeat Maria Sakkari 6-1 6-4.