Wednesday in the World Cup, but perhaps nothing captures the implausibility more than one simple fact: Germany, the defending champion, took its earliest exit from the tournament since 1938, when Adolf Hitler was the country’s leader and only 15 teams participated. Germany, a four-time World Cup champion perceived as a dynamic soccer machine that rarely sputters, broke down in an inglorious way, giving up two goals in extra time and losing 2-0 to South Korea. The result allowed Mexico to advance despite a 3-0 loss to group winner Sweden 500 miles away in Yekaterinburg. “It’s a dark day for German football,” Germany goalkeeper Manuel Neuer said. The Germans entered injury time tied 0-0, knowing a 1-0 victory would have been enough to advance. Instead, Kim Young-gwon and Son Heung-min scored — the latter after Neuer had vacated his goal to press forward as an extra attacker. The disappointment of being eliminated is just huge,” said coach Joachim Loew, who said the team deserved to go ...