- Boxing champion Daniel Jacobs was diagnosed with bone cancer in 2011
- Jacobs started training with Andre Rozier as a teenager
- Jacobs and Rozier have a "father and son" relationship
New York (CNN)For WBA world middleweight champion Daniel Jacobs, the world turned upside down in 2011. While he was visiting US troops in Iraq he began experiencing weakness in his legs. His first thought was he needed to amp-up his workouts.