Leonardo Mayer

Leonardo Martín Mayer (Spanish: [leoˈnaɾðo maɾˈtim ˈmaʝeɾ], German: [ˈmaɪɐ]; born May 15, 1987) is a tennis coach and a former professional player from Argentina. Mayer achieved a career-high singles ranking of world No. 21 in June 2015 and world No. 48 in doubles in January 2019.

Mayer started playing tennis at age nine.

As a junior, Mayer won the 2005 French Open Boys' Doubles and the Orange Bowl with Emiliano Massa, reaching as high as No. 2 in the combined world rankings in June 2005.

He won one Challenger singles title in 2008 and lost in three other finals.

Mayer qualified for his first Grand Slam at the 2009 French Open and beat 15th seed James Blake in straight sets in the first round. He lost to Tommy Haas in five sets in the second round. At Wimbledon, he beat Óscar Hernández in straight sets in the first round. He lost to Fernando González in four sets in the second round.

Mayer had a successful American summer, reaching the semifinals of the LA Tennis Open (lost to Carsten Ball) and the quarterfinals of the Pilot Pen Tennis tournament in New Haven (lost to Igor Andreev). At the 2009 US Open, Mayer reached the second round, losing to Radek Štěpánek in straight sets.

In 2011, Mayer qualified for the Brasil Open and defeated world no. 73 Igor Andreev in the first round of the main draw. In the second round, he played seventh-seeded Italian Potito Starace and lost.

Mayer reached the third round of the French Open for the third time and the US Open in 2012, losing to Nicolás Almagro in straight sets at Roland Garros and Juan Martín del Potro in New York.