When did Bayern Munich win their first competitive game under Barcelona's former manager?
2009–10 FC Bayern Munich season The 2009–10 season of Bayern Munich began on 1 July with their first training session, led by the team's new head coach Louis van Gaal. After several friendlies the first competitive game was a cup game on 1 August. The league started on 8 August.
2010–11 FC Barcelona season The 2010–11 season was Futbol Club Barcelona's 111th in existence and the club's 80th consecutive season in the top flight of Spanish football. Barcelona will start the season with a new president after Joan Laporta reached his term limit on 30 June, leaving behind a very successful club tenure.