When did Bayern Munich win their first competitive game under Barcelona's former manager?
Louis van Gaal Aloysius Paulus Maria "Louis" van Gaal, (] ; born 8 August 1951) is a Dutch football manager and former player. He was formerly manager of Ajax, Barcelona, AZ, Bayern Munich, the Netherlands and Manchester United. He is one of the most decorated managers in world football, having won 20 major honours in his managerial career.
Rafael Benítez Rafael Benítez Maudes (] ; born 16 April 1960) is a Spanish professional football coach who is the manager of Premier League club Newcastle United. He is the only manager in history to have won the UEFA Europa League, UEFA Super Cup, UEFA Champions League and the FIFA Club World Cup.