In what year was the football club, for which Grégoire Defrel plays, formed?
Grégoire Defrel: André Grégoire Defrel (born 17 June 1991) is a French professional footballer who plays as a forward for Roma, on loan from Sassuolo. A.S. Roma:  Founded by a merger in 1927, Roma have participated in the top-tier of Italian football for all of their existence except for 1951–52.
i don't know