The former German tennis player is living his first experience as a coach with his compatriot, who at 17 years old has been the surprise of the grass court season, reaching the quarterfinals in Stuttgart.
Philipp Kohlschreiber
The former German tennis player is living his first experience as a coach with his compatriot, who at 17 years old has been the surprise of the grass court season, reaching the quarterfinals in Stuttgart.