Boris Becker's ex-coach: Nick Bollettieri is dead

Nick Bollettieri is one of the great personalities in the world of tennis - even though the American never appears as a world-class player himself.

Boris Becker's ex-coach: Nick Bollettieri is dead

Nick Bollettieri is one of the great personalities in the world of tennis - even though the American never appears as a world-class player himself. But as a coach, he forms and accompanies countless superstars over decades. Nick Bollettieri has died at the age of 91.

The tennis world mourns: Coach icon Nick Bollettieri died on December 4th at the age of 91. US media reported this unanimously. Former Wimbledon finalist Sabine Lisicki said goodbye to her former teacher via Twitter: "Thank you Nick! You gave so many children a place to live their dreams. You supported them with your knowledge and belief that anything is possible. You shaped the game of tennis. You are greatly missed. Rest in peace Nick."

Bollettieri, who was married eight times, worked in his academy in Bradenton/Florida until old age, where he formed numerous stars. His protégés included Andre Agassi, Monica Seles, Maria Sharapova, Jim Courier and Anna Kurnikowa. At times, Boris Becker and Tommy Haas also relied on the expertise of Bollettieri, who was born Nicholas James Bollettieri on July 31, 1931 in Pelham/New York.

"So many memories, I don't even know where to start. Nickiiiiii, that's what I've called you for the longest time. Thank you for your time, your knowledge, your dedication, your expertise, your willingness to share your skills, your personal Interested in looking after me and giving me the best opportunity to follow my dreams," wrote former world number two Tommy Haas on Instagram. "You were a dreamer and a doer and a pioneer in our sport, truly one of a kind."

Bollettieri earned a reputation as a motivator and hard worker, shaping ten eventual world number ones in total.