Coaching Career Highlights
- 2011: Michael Berrer
- 2012-2013: Tommy Haas
- 2014: Bradley Klahn and Taylor Fritz
- 2015: Tommy Haas and Taylor Fritz
- Coached Tommy Haas from outside the Top 200 to a ranking of World No. 11 within less than 24 months. During that time, Haas won the following titles: Halle (2012), Munich and Vienna (2013), and beat Roger Federer and Novak Djokovic
- Started working with Taylor Fritz at age 15. In 2015, Fritz won the US Open Juniors and reached the French Open final. He became #1 in the world in the Junior ITF Rankings. In the same year, he also won back-to-back Challenger titles in Sacramento and Fairfield at the age of 17
- Also coached Grigor Dimitrov.
Personal
- Christian holds an MBA, and enjoys fitness
