Roman Grill is now a player agent whose clients include a former captain of his national team, which he led to what?
Roman Grill:  His clients include Owen Hargreaves, Philipp Lahm and Piotr Trochowski. Philipp Lahm: Philipp Lahm (] ; born 11 November 1983) is a German retired professional footballer who played as a right back or defensive midfielder and spent much of his early career playing left back. Philipp Lahm:  He is also a former captain of his national team, which he led to the 2014 FIFA World Cup, before retiring from international football.
i don't know