What was the common profession of Piotr Artur Trochowski and Roman Grill?
Roman Grill: Roman Grill (born March 1, 1966) is a German former footballer who is now a player agent. Piotr Trochowski: Piotr Artur Trochowski (] , ] ; born 22 March 1984) is a German professional footballer who plays as an attacking midfielder and is currently unattached to a club.
German professional footballer