Jurgen Klinnsmann returns to football to manage champions Bayern Munich . Werder Bremen , Schalke , Wolfsburg likely to challenge Bayern this season . - The U.S. will play a friendly against Mexico on June 12 in Los Angeles. Five-times champions 'Gladbach were exiled for just one season , winning the second division by six points just one season after their relegation . Moenchengladbach , Cologne back in top flight ; Hoffenheim new to Bundesliga .
Jurgen Klinnsmann returns to football to manage champions Bayern Munich . Werder Bremen , Schalke , Wolfsburg likely to challenge Bayern this season . - The U.S. will play a friendly against Mexico on June 12 in Los Angeles. Moenchengladbach , Cologne back in top flight ; Hoffenheim new to Bundesliga .