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Switzerland's Roger Federer (R) waves his national flag next to teammate Michael Lammer as they celebrate winning the Davis Cup semi-final between Switzerland and Italy on September 14, 2014 in Geneva. AFP PHOTO / FABRICE COFFRINI        (Photo credit should read FABRICE COFFRINI/AFP/Getty Images)
Switzerland's Roger Federer (R) waves his national flag next to teammate Michael Lammer as they celebrate winning the Davis Cup semi-final between Switzerland and Italy on September 14, 2014 in Geneva. AFP PHOTO / FABRICE COFFRINI        (Photo credit should read FABRICE COFFRINI/AFP/Getty Images)

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    Roger Federer's pep talk for Swiss team at Euro 2016

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Roger Federer's pep talk for Swiss team at Euro 2016

Swiss tennis star Roger Federer knows how to win a big tournament -- and has some advice for Switzerland's team at Euro 2016.

Roger Federer's pep talk for Swiss team at Euro 2016

Swiss tennis star Roger Federer knows how to win a big tournament -- and has some advice for Switzerland's team at Euro 2016.