Juan Carlos Ferrero Donat (; born 12 February 1980) is a Spanish sports coach and a former professional tennis player. He was ranked as the world No. 1 in men's singles by the Association of Tennis Professionals (ATP), achieved in September 2003. Ferrero won 16 ATP Tour–level singles titles, including a major at the 2003 French Open and four Masters events. He was also runner-up at the 2002 French Open and 2003 US Open. He was nicknamed el Mosquito ("the Mosquito") for his speed and slender physical build.
Ferrero retired from professional tennis in 2012. Afterward, he took up directorship of the Ferrero Tennis Academy in Alicante, Villena, where he himself had been trained.Ferrero Tennis Academy 30 years. Documentary film in Spanish with subtitles in English, 2025 In July 2017, he began coaching top player Alexander Zverev. Their partnership ended after seven months due to differences between them. In 2019, Ferrero became coach to a young Carlos Alcaraz. The partnership was an immediate success, and produced 24 ATP Tour–level titles, including six majors and eight Masters events. In December 2025, Ferrero and Alcaraz ended their partnership. As of January 2026, Ferrero has been working as a mental performance coach for golf player Ángel Ayora.
Personal life Nicknamed Juanki, JC, and "el Mosquito", Ferrero began playing tennis at age seven with his father, Eduardo Ferrero Micó (1943–2022), who often traveled with him. He has two sisters, Ana and Laura. He has cited his mother, Rosario, who died of cancer when he was sixteen, as his inspiration throughout his tennis career. Ferrero married Eva Alonso in Valencia in July 2015. They had their first child, a daughter, in September 2014, and they have had two more children since..
In July 2007, Ferrero bought an old cottage in Bocairent, south of Valencia, and refurbished it into the "Hotel Ferrero", which features 12 luxury suites. He used to be a joint owner of the Valencia Open tournament along with fellow tennis player David Ferrer.
Career
Early years Born in Ontinyent, Ferrero came to prominence in 1998 when he made the final of the Junior French Open, losing to Fernando González. He finished the year ranked as the No. 17 junior. He then made his professional debut in 1998 by reaching the finals of his first Futures tournament in Italy. He won two Futures events in Spain and ended the year ranked No. 345.
1999: ATP debut Ferrero made his ATP main draw debut at the Grand Prix Hassan II as a qualifier, where he reached the semi-finals. He followed this up by winning a Challenger event in Naples. He then received a wildcard at the Barcelona Open, where he reached the third round, losing to Carlos Moyá. He reached back–to–back finals at his next two tournaments, after which he debuted in the top 100 at No. 95. He reached his fourth Challenger final of the year at Graz, where he lost to Tomáš Zíb. He then played at the Austrian Open, where he earned his first top 20 win in the second round against No. 15 Tommy Haas, before losing in the quarterfinals. He made his Grand Slam debut at the US Open in August, losing to ninth-seeded Greg Rusedski in the first round. The following month, at just his fifth Tour-level event, he won his first career title at the Majorca Open, which propelled him from No. 68 to 47. He ended the year at No. 43 and won the ATP Newcomer of the Year award.
2000: Top 20 debut Ferrero began the year at the Auckland Open, where he made the quarterfinals. He reached the third round in his Australian Open debut, where he was defeated by Younes El Aynaoui in a tight five–setter. In Dubai, he earned his first top 10 win over ninth-ranked Nicolás Lapentti in the second round, before losing to Nicolas Kiefer in the final. He backed this up with a semifinal at the Franklin Templeton Tennis Classic, which he lost to Australian Lleyton Hewitt. He lost his first matches at Indian Wells to Michael Chang and in Miami to George Bastl. He then represented Spain at the Davis Cup for the first time, where he won both of his matches.
During the European clay season, Ferrero made back–to–back quarterfinals at the Estoril Open and the Monte Carlo Open, his first Masters quarterfinal. He lost to Nicolás Lapentti and Gastón Gaudio respectively. He made it to his second final of the year at the Barcelona Open, which he lost to Marat Safin. By doing so, Ferrero entered the top 20 for the first time, ranked No. 18. Ferrero only made the third round of the Italian Open, where he lost to Mariano Puerta, and the second round of the German Open, where he lost to Andrei Pavel. He bounced back by reaching the semifinals of his first French Open after defeating No. 10 Àlex Corretja, before losing to the eventual champion Gustavo Kuerten in five sets. He chose not to compete at Wimbledon.
At the US Open, Ferrero reached the fourth round but lost in straight sets to eventual champion Marat Safin. He represented Spain at the Olympics in Sydney, where he reached the quarterfinals, losing to France's Arnaud di Pasquale. He then suffered losses in the first match at his next four events: in Vienna to Richard Krajicek, in Toulouse to Magnus Gustafsson, at the Swiss Indoors to Richard Krajicek, and at the Stuttgart Masters to Younes El Aynaoui. The drought ended when he reached the semifinals of the Paris Masters, where he lost once again to eventual champion Safin. Ferrero lost in the first round of the Stockholm Open to Adrian Voinea. Ferrero then played for Spain in the Davis Cup final against Australia. He won both his matches against Patrick Rafter and Lleyton Hewitt, leading Spain to their first Davis Cup title. Although Ferrero did not win any titles in 2000, his performances in the slam tournaments helped him end the year ranked No. 12.
2001: Top 10 debut Ferrero began the year poorly, suffering three consecutive losses. This streak began with a second round loss at the Australian Open to Australian Andrew Ilie in five sets, followed by losses at the Davis Cup to Dutch Raemon Sluiter, in five sets, and in the first round at Rotterdam to Ivan Ljubičić. Ferrero bounced back with a title win in Dubai, where he upset World No. 5 Magnus Norman in the quarterfinals before defeating Marat Safin in the final. He suffered a first-round loss at Indian Wells in three tie–break sets to Nicolás Massú, and a fourth-round loss to Gastón Gaudio in Miami.
Ferrero began the European clay season by winning the Estoril Open in an all–Spanish final, defeating Félix Mantilla. With this win, he became No. 9 in the world, his first entry into the top ten. Ferrero then suffered an early exit at the second round of the Monte Carlo Masters to Galo Blanco. He recovered by winning two tournaments in a row: the Barcelona Open, where he defeated Carlos Moyá, and the Rome Masters, where he defeated Gustavo Kuerten. This was Ferrero's first win over a world No. 1 and his first Masters title. Ferrero made it to a third consecutive final at the Hamburg Masters, which he lost to Albert Portas. He reached the semifinals at the French Open for the second consecutive year after defeating Lleyton Hewitt in straight sets. He then lost to the No. 1 seed, defending champion, and eventual champion Kuerten in straight sets. Ferrero then played his first Wimbledon, where he reached the third round before losing to Britain's Greg Rusedski in straight sets.
Ferrero reached the finals at Gstaad, where he lost to Jiří Novák. He lost to Nicolás Lapentti in the quarterfinals of the Austrian Open, and to Patrick Rafter in the quarterfinals of the Canada Masters. Ferrero's results in the US were disappointing: he lost to Hicham Arazi in the second round of Cincinnati, and was upset by compatriot Tommy Robredo in a tight five-setter in the third round of the US Open. Ferrero then helped his Davis Cup team get back to the World Group stage by defeating Uzbekistan's Oleg Ogorodov. He made the quarterfinals of the Salem Open, where he lost to Rainer Schüttler, and of Lyon, where he lost to Younes El Aynaoui. Ferrero then lost in the first round of the Stuttgart Masters, to Thomas Enqvist and the St. Petersburg Open, to Rainer Schüttler. At the final Masters event of the year in Paris, he lost to Arazi in the third round. Ferrero qualified for the Tennis Masters Cup. In the round robin stage, he lost to Yevgeny Kafelnikov, but defeated Gustavo Kuerten and Goran Ivanišević to advance to the semifinals. In the semis, he lost to eventual champion Lleyton Hewitt. He finished the year ranked World No. 5.
2002: First slam final, injuries Ferrero missed the 2002 Australian Open due to bursitis in his right knee. He instead started his year at the Milan Indoor, where he was upset by eventual champion Davide Sanguinetti in the second round. Ferrero represented Spain in its Davis Cup tie against Morocco, where he won against Hicham Arazi but lost to Younes El Aynaoui. He made his first quarterfinal of the year at the Open 13, where he was upset by No. 99 Cédric Pioline. At Rotterdam, Ferrero lost his opening match against eventual champion Nicolas Escudé. As the defending champion in Dubai, he retired in his second-round match, 1–2 down against El Aynaoui with a pulled abductor. Ferrero's form continued to dip as he suffered more early exits: in the first round of Indian Wells against Greg Rusedski, in the third round of Miami against Adrian Voinea (having suffered a stress fracture), and in the second round of the Estoril Open against David Nalbandian.
Ferrero bounced back at the Monte Carlo Masters, where he earned his first top-10 wins of the year against Tommy Haas and Sébastien Grosjean, before defeating Carlos Moyá in straight sets to clinch the title. However, Ferrero was unable to keep his form. He lost to Alberto Martín at the third round at Barcelona, to Ivan Ljubičić in the second round of Rome, and to Alberto Costa in the first round of Hamburg. Due to this bad run of results, Ferrero fell out of the top 10 for the first time in a year. At the 2002 French Open, Ferrero reached his first Grand Slam final, after upsetting No. 4 Andre Agassi in four sets and No. 2 Marat Safin in straight sets. Despite being the strong favourite, Ferrero lost to Alberto Costa in four sets. His foot was injured during the tournament, but he played through it with the aid of some cortisone shots.
Ferrero lost early at Wimbledon to 98th-ranked American Jeff Morrison in straight sets. He reached the finals at the Generali Open, where he lost to Àlex Corretja. He made it to the semifinals of the Cincinnati Masters, where he lost to eventual champion Carlos Moyá. At the US Open, Ferrero lost in the third round to Fernando González. He won his second title of the year in Hong Kong, avenging his recent loss to Moyá by beating him in the final. Ferrero then lost in the quarterfinals of the Madrid Masters to Andre Agassi, and the semifinals of the Swiss Indoors to Fernando González. Ferrero again qualified to play the Tennis Masters Cup. In the round robin stage, Ferrero recorded a loss against Roger Federer but wins over Andre Agassi and Jiří Novák to advance to the semifinals. He defeated compatriot Carlos Moyá to advance to the final, which he lost to World No. 1 Lleyton Hewitt. Ferrero ultimately finished the year ranked No. 4.
2003: World No. 1, Roland-Garros victory