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.
1994 UEFA Champions League Final The 1994 UEFA Champions League Final was a football match between Italian club Milan and Spanish club Barcelona, played on 18 May 1994 at the Olympic Stadium in Athens, Greece.