Answer
1. FC Köln is the German club where Petit played. The French midfielder joined the Bundesliga side in 2000 after a successful spell with Arsenal. He spent two seasons with Köln, making 51 appearances and scoring 10 goals. During his time at the club, Petit helped Köln avoid relegation and reach the semi-finals of the DFB-Pokal. He left Köln in 2002 to join Chelsea.