I am a legendary athlete known for my dominance in a sport that requires immense power and precision, and I've achieved feats that were once considered impossible. My career has been marked by both stunning victories and heartbreaking setbacks, making my story all the more captivating. I am also known for my intense competitiveness and unique training methods. Who am I?

1. I was the first athlete to achieve a specific feat that was previously considered untouchable in my sport.
2. My rivalry with another competitor is one of the most iconic in the history of sports.
3. I have been featured in multiple documentaries, showcasing my intense training and personal struggles.
4. Despite facing significant challenges, I always found a way to come back stronger.