Kolumne

Ist Tennis die härteste Sportart der Welt?

von Christian Albrecht Barschel
zuletzt bearbeitet: 20.08.2016, 11:35 Uhr

RIO DE JANEIRO, BRAZIL - AUGUST 13: Juan Martin Del Potro of Argentina reacts after defeating Rafael Nadal of Spain in the Men's Singles Semifinal Match on Day 8 of the Rio 2016 Olympic Games at the Olympic Tennis Centre on August 13, 2016 in Rio de...

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