Serena Willliam's coach Nick Bollettieri died at the afe of 91.

He was best known as the coach of Serena Williams, whom he guided to five Grand Slam singles titles. Bollettieri’s academy in Florida – Nick Bollettieri Tennis Academy – is credited with revolutionising tennis training and coaching in the United States and around the world.

He was inducted into the International Tennis Hall of Fame in 2000. Bollettieri was born in North Carolina and began playing tennis at the age of 12. He coached a number of top players over his long career, including Andre Agassi and Jim Courier.

Serena Williams credited Bollettieri for her success on the court, saying: “Nick has been instrumental in my development as an athlete and a person. Nick was my friend and a great coach.”

Nick Bollettieri’s legacy as one of the greatest tennis coaches in history is undeniable, and his impact on players such as Serena Williams will forever be remembered. His passion for teaching, mentoring, and inspiring young athletes to reach their full potential will continue to live on through all those he touched.

His most successful student and one of the greatest athletes in history, Serena Williams, paid her respects to Nick on Twitter. “Nick was a great coach and mentor,” she wrote. “He helped me become the player I am today and I will always be grateful for his guidance.

He will be deeply missed.” Nick Bollettieri was one of the most influential figures in American tennis, having coached 10 Grand Slam champions over the course of his career.

He trained Serena Williams alongside her sister Venus and many other world-renowned players including Andre Agassi and Jim Courier. Nick will be remembered not only for his achievements on court but also for his legendary enthusiasm and passion for the sport of tennis.