Petit joined Arsenal in 1997, reuniting with his former manager Arsene Wenger. In his first season at the club, Petit won the double, forming an incredible midfield partnership with his countryman Patrick Vieira. After a short spell at Barcelona, Petit returned to England in 2001, where he joined Chelsea. He helped the club to qualify for the Champions League in 2003, which would be vital for Chelsea's growth over the next decade. With France, Petit won the World Cup in 1998, as well as Euro 2000.