Esteemed tennis coach Rick Macci has provided a detailed breakdown of the technical changes that he believes could solve Coco Gauff’s second serve issues.
Gauff‘s serve has become a regular talking point as she has battled difficulties with double faults in various spells over the last few years.
The American star hit 430 double faults in her 71 matches in 2024 — the highest tally WTA Tour.
The 21-year-old also leads the tour for double faults this season, having committed 250 in her 41 matches to date, which is 57 more than second-placed Linda Noskova.
Gauff’s second serve was particularly troublesome at the 2025 Canadian Open in Montreal. She hit 23 double faults in her opening round win over Danielle Collins — the fifth-highest number ever recorded in a WTA Tour match.
Despite this weakness, Gauff has established herself as a consistent challenger for the biggest titles in the sport. She is currently at a career-high ranking of world No 2 and secured her second Grand Slam title at the French Open in June.
In an exclusive interview with Tennis 365, Macci named Gauff when asked if there are any players he would like the chance to work with or advise.
“To consult or help someone, obviously right off the bat, it would be Coco Gauff,” Macci said.
“I mean, there’s no doubt about it, I could flip the script with her second serve and forehand. No doubt about it, but it’d have to be done in the off-season.”
The 21-year-old also leads the tour for double faults this season, having committed 250 in her 41 matches to date, which is 57 more than second-placed Linda Noskova.
Gauff’s second serve was particularly troublesome at the 2025 Canadian Open in Montreal. She hit 23 double faults in her opening round win over Danielle Collins — the fifth-highest number ever recorded in a WTA Tour match.
Despite this weakness, Gauff has established herself as a consistent challenger for the biggest titles in the sport. She is currently at a career-high ranking of world No 2 and secured her second Grand Slam title at the French Open in June.
In an exclusive interview with Tennis 365, Macci named Gauff when asked if there are any players he would like the chance to work with or advise.
“To consult or help someone, obviously right off the bat, it would be Coco Gauff,” Macci said.
“I mean, there’s no doubt about it, I could flip the script with her second serve and forehand. No doubt about it, but it’d have to be done in the off-season.”
“First off, her little brother is at our academy, and I’m very good friends with the Dad,” the American began.
“At the end of the day, they were gonna take off some time last year, year before, when there was a lot of time to do reconstructive surgery [on the serve], but you know, when you start winning a little bit, sometimes that speed bump or that technical flaw, can be kind of camouflaged.
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