Hidden Battle Behind Tennis Champ's Success: John-Laffnie de Jager Opens Up

John-Laffnie de Jager is a phenomenon. Born in Ermelo, a small town in Mpumalanga, South Africa, De Jager's life was marked by adversity from the very beginning. His heart stopped at birth, and in the rush to resuscitate him, a doctor administered an injection to the wrong site, damaging the nerve running down his right leg.

The injury was permanent, and for the first three years of his life, De Jager's leg was in a cast. He has just 10% nerve function in that leg, and doctors told his parents their son had only a 12% chance of walking normally. Sport was out of the question, let alone professional tennis. They also advised that he should never walk barefoot until he was 18.

De Jager credits his parents for instilling in him a mindset to live a normal life: 'You know, every day that I spend walking is a bonus.' His parents ignored every instruction, letting him run barefoot, climb, fall, and live like any other child. De Jager's disability was so severe that at one point, he qualified for the Paralympics.

De Jager chose a different path, one built on defiance, grit, and a champion's mindset. He became a former Davis Cup captain and three-time Grand Slam semi-finalist, carving out a thriving career in spite of daily pain. The pain has been constant, and when asked to rate it out of 10, De Jager didn't hesitate: 'I can't remember a day that I didn't have pain.'

Despite the odds, De Jager defied doctors and achieved great success in the tennis world. He kept his secret hidden from almost everyone, including close friends and family. 'A lot of people don't know about it, and in those days, people didn't know,' he said.

De Jager's proudest achievement came long after his playing days: helping bring the 'Match in Africa' featuring Roger Federer and Rafael Nadal, to Cape Town. Tickets sold out in nine and a half minutes, filling a 51 954-seater stadium and delivering world-class tennis to South Africa.

De Jager immediately recognised himself in Nadal's story, where the Spaniard reveals he hid his Muller-Weiss diagnosis and played through pain for years. De Jager has lived with a similar condition, and his determination and faith have helped him overcome the odds.

'I believe in God and I'm a Christian. For me, I wasn't surprised about it, but I did think, oh my goodness, this is happening right now. I mean, it was incredible.'

• John-Laffnie de Jager, on his recovery.

De Jager's story is a testament to the power of the human spirit. Against all odds, he achieved greatness and inspired others with his determination and faith. His legacy will continue to inspire generations to come.