Many people may consider tennis as one of the few sports that pit singular competitors against one another. In fact, there is much more behind the scenes of these one-on-one battles. Now let’s look at ten of the greatest coaches in the history of tennis and their roles in cultivating greatness.

1. Mike Estep

Before taking up to coach, Mike Estep was a professional on the tour, winning in total two ATP singles titles and seven ATP doubles titles. His coaching career was extremely productive with many great players guided to Grand Slam titles, such as the legendary Martina Navratilova, Jana Novotna, Hana Mandlikova, and Arantxa Sanchez Vicario.

The most notably thing about Estep is that he was part of Navratilova’s team during 10 of her 18 Grand Slam triumphs.

2. Patrick Mouratoglou

Patrick Mouratoglou is a tennis coach and reputed tennis analyst, who has worked with some tennis players over the years, including Marcos Baghdatis (whom he guided to the 2006 Australian Open final), Anastasia Pavlyuchenkova, Grigor Dimitrov, Laura Robson, Jeremy Chardy, and Yanina Wickmayer.

The Frenchman has been the head coach of superstar Serena Williams since June 2012. He took on the difficult task of coaching Williams to more Grand Slam titles in spite of knowing that she was in her 30’s. Their partnership has worked wonders to result in Williams’ one Olympic gold medal, ten Grand Slams, and three WTA Finals Championships with Mouratoglou as her mentor.

He is also famous for Mouratoglou Tennis Academy, which is one of the world’s most sought after tennis schools.

3. Brad Gilbert

Brad Gilbert, the foremost coaching manual available to coaches and novices, is most famous for his partnership with Andre Agassi, who won six of his eight Grand Slams with Gilbert by his side.

After saying goodbye with Agassi, Gilbert coached the rising tennis star Andy Roddick and guided him to his only Grand Slam title at the 2003 US Open.

In 2006 and 2007, Gilbert coached Andy Murray and in recent years, he has also worked with Kei Nishikori and Sam Querrey.