Costa Rica stunned Japan 1-0 thanks to a late goal at the World Cup on Sunday to blow Group E wide open and hand a potential lifeline to Germany.
Japan, who shocked four-time champions Germany 2-1 in their opener in Qatar, could have taken a giant stride towards the last 16 with a win.
Instead they laboured for large parts of the match against a Costa Rica side who were hammered 7-0 by Spain, then defender Keysher Fuller scored in the 81st minute with a deflected strike.
It was Costa Rica’s first shot on target at this World Cup and could be of huge benefit to the Germans.