Football Soccer - Bayern Munich v Hertha BSC Berlin - German Bundesliga - Allianz -Arena, Munich, Germany - 21/09/16 Bayern Munich's Robert Lewandwowski reacts REUTERS/Michael Dalder

Football Soccer - Bayern Munich v Hertha BSC Berlin - German Bundesliga - Allianz -Arena, Munich, Germany - 21/09/16 Bayern Munich's Arjen Robben reacts after scoring a goal REUTERS/Michael Dalder

Football Soccer - Bayern Munich v Hertha BSC Berlin - German Bundesliga - Allianz -Arena, Munich, Germany - 21/09/16 Bayern Munich's Arjen Robben reacts after scoring a goal REUTERS/Michael Dalder

Football Soccer - Bayern Munich v Hertha BSC Berlin - German Bundesliga - Allianz -Arena, Munich, Germany - 21/09/16 Bayern Munich's Thiago Alcantara reacts after scoring a goal REUTERS/Michael Dalder

Football Soccer - Bayern Munich v Hertha BSC Berlin - German Bundesliga - Allianz -Arena, Munich, Germany - 21/09/16 Bayern Munich's Arturo Vidal and Hertha's Peter Pekarik in action REUTERS/Michael Dalder

The Bank of America building is shown in Los Angeles, California October 29, 2014. REUTERS/Mike Blake/File Photo

Panama President Juan Carlos Varela addresses the United Nations General Assembly in the Manhattan borough of New York, U.S. September 20, 2016. REUTERS/Eduardo Munoz

Philanthropist Bill Gates (R) embraces Pricilla Chan (2nd R) as Mark Zuckerberg looks on during an announcement of the Chan Zuckerberg Initiative to "cure, prevent or manage all disease" by the end of the century during a news conference at UCSF Mission Bay in San Francisco, California, U.S. September 21, 2016. REUTERS/Beck Diefenbach